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1.
Int. j. morphol ; 41(2): 491-500, abr. 2023. ilus, tab
Article in Spanish | LILACS | ID: biblio-1440341

ABSTRACT

Siendo el cáncer gástrico la 3ª causa de muerte por cáncer en Chile, y existiendo estrategias de tamizaje consistentes en pesquisa de lesiones preneoplásicas de la mucosa gástrica, es relevante conocer los aspectos genéticos y moleculares que puedan ser aplicados, en la optimización de dichas estrategias a grupos de mayor riesgo. El objetivo de este manuscrito fue revisar la evidencia actual en los aspectos señalados, y de la inmunohistoquímica de 4 marcadores (p53, CDX2, MUC2 y S100A9) en la mucosa gástrica normal y en las lesiones preneoplásicas de la misma.


SUMMARY: Since gastric cancer is the 3rd leading cause of death from cancer in Chile, and there are screening strategies consisting of screening for preneoplastic lesions of the gastric mucosa, it is important to know certain genetic and molecular aspects that can be applied in optimizing these strategies for higher risk groups. The aim of this manuscript was to review the current evidence on the aforementioned aspects, and on the immunohistochemistry of 4 markers (p53, CDX2, MUC2 and S100A9) in normal gastric mucosa and in its preneoplastic lesions.


Subject(s)
Humans , Precancerous Conditions/pathology , Stomach Neoplasms/pathology , Gastric Mucosa/pathology , Precancerous Conditions/genetics , Precancerous Conditions/metabolism , Stomach Neoplasms/genetics , Stomach Neoplasms/metabolism , Immunohistochemistry , Biomarkers, Tumor , Mass Screening , Risk Factors , Genes, p53 , Mucin-2 , CDX2 Transcription Factor , Gastric Mucosa/metabolism , Metaplasia
2.
São Paulo; s.n; 2022. 57 p. tab, ilus.
Thesis in Portuguese | LILACS, Inca | ID: biblio-1414261

ABSTRACT

Introdução: A atrofia gástrica (AG) e metaplasia intestinal (MI) são condições préneoplásicas no desenvolvimento de câncer gástrico, onde a avaliação endoscópica e histopatológica baseia-se no sistema atualizado de Sydney que inclui uma biópsia da incisura angular (IA) na sua avaliação, assim como os sistemas de estadiamento de risco de câncer gástrico Operative Link on Gastritis Assessment (OLGA) e o Operative Link on Gastritis Assessment using Intestinal Metaplasia (OLGIM). Objetivo: Comparar as classificações OLGA e OLGIM com e sem a biópsia da IA. Além disso, determinar a prevalência de Helicobacter pylori (HP) e das alterações pré-neoplásicas (AG, MI e displasia) por região biopsiada, e ainda identificar os achados exclusivos da IA, além de identificar potenciais fatores de risco para câncer gástrico associados às alterações pré-neoplásicas. Materiais e Métodos: Estudo observacional, retrospectivo e prospectivo, descritivo, unicêntrico com 350 pacientes sem diagnóstico de neoplasia gástrica, que realizaram endoscopia digestiva alta com biópsias na Gastroclínica Itajaí, no período de novembro de 2017 até outubro de 2018 (retrospectivo) e de março de 2020 a maio de 2022. A classificação histopatológica de gastrite obedeceu ao sistema Sydney atualizado, e a avaliação do risco de câncer gástrico aos sistemas OLGA e OLGIM. A metodologia aplicada avaliou os escores dos sistemas OLGA e OLGIM com e sem a avaliação da biópsia da IA. A análise estatística foi realizada utilizando medidas descritivas (frequências, porcentagens, média, desvio padrão, intervalo de confiança de 95%). A comparação entre os ranks foi feita pelo teste de Kruskal-Wallis ou Wilcoxon. Para analisar a relação entre as frequências foi utilizado o teste exato de Fisher bilateral. O score de Wilson com correção de continuidade foi aplicado ao intervalo de confiança. Resultados: A idade mediana foi de 54,7 anos, sendo 52,5% pacientes do gênero feminino e 47,5% do gênero masculino. A comparação entre o protocolo de biópsias empregado (corpo + antro [CA] vs corpo + antro + incisura [CAI]) e os estágios OLGA e OLGIM apresentou uma diminuição significativa em ambos os sistemas de estadiamento quando aplicado o protocolo de biópsia restrito ao corpo e antro (OLGA CAI vs CA; p 0,008 / OLGIM CAI vs CA; p 0,002). A prevalência das lesões pré-malignas (AG, MI e displasia) da mucosa gástrica foi de (33,4%, 34% e 1,1%, respectivamente) na amostra total. A região do antro foi o sítio que apresentou significativamente maior número de alterações (p≤0,0001), exceto para a positividade da infecção por HP, a qual esteve presente em 24,8% dos pacientes. Não foi possível fazer correlação entre os fatores de risco para desenvolvimento do câncer gástrico com os achados histológicos devido à baixa prevalência dos mesmos e a casuística ter resultado em uma amostra bastante limitada. Conclusão: A biópsia da incisura angular é importante porque aumentou o número de casos em estágios mais avançados de atrofia e metaplasia intestinal. O estudo apresentou limitações, onde a principal delas foi a amostra relativamente pequena e composta por indivíduos saudáveis apesar de idosos na sua maior parte


Introduction: Gastric atrophy (GA) and intestinal metaplasia (IM) are pre-neoplastic conditions in the development of gastric cancer, where endoscopic and histopathological evaluation is based on the updated Sydney system that includes a biopsy of the incisura angularis (IA), as well as the Operative Link on Gastritis Assessment (OLGA) and Operative Link on Gastritis Assessment using Intestinal Metaplasia (OLGIM) gastric cancer risk staging systems. Objective: To compare the OLGA and OLGIM classifications with and without IA biopsy. In addition, to determine the prevalence of Helicobacter pylori (HP) and preneoplastic changes (AG and IM) by biopsied region, and to identify the exclusive findings of IA. Also, to identify potential risk factors for gastric cancer associated with pre-neoplastic changes. Materials and Methods: Observational, retrospective and prospective, descriptive, unicentric study with 350 patients without a diagnosis of gastric cancer, who underwent upper digestive endoscopy with biopsies at Gastroclínica Itajaí, from November 2017 to October 2018 (retrospective) and from March 2020 to May 2022. The histopathological classification of gastritis followed the updated Sydney system, and the gastric cancer risk assessment followed the OLGA and OLGIM systems. The methodology applied evaluated the scores of the OLGA and OLGIM systems with and without the assessment of the IA biopsy. Statistical analysis was performed using descriptive measures (frequencies, percentages, mean, standard deviation, 95% confidence interval). Ranks were compared using the Kruskal-Wallis or Wilcoxon tests. To analyze the relationship between the frequencies, the bilateral Fisher's exact test was used. Wilson's score with continuity correction was applied to the confidence interval. Results: The median age was 54,7 years, with 52,5% female patients and 47,4% male patients. The comparison between the used biopsies protocol (corpus + antrum [CA] vs corpus + antrum + incisura angularis [CAI]) and the OLGA and OLGIM stages showed a significant decrease in both staging systems when the biopsy protocol restricted to the corpus and antrum was applied (OLGA CAI vs CA; p 0,008 / OLGIM CAI vs CA; p 0,002). The prevalence of pre-malignant lesions (GA, IM and dysplasia) of the gastric mucosa was (33,4%, 34% and 1,1%, respectively) in the total sample. The antrum region was the site that presented a significantly higher number of alterations (p≤0,0001), except for the positivity of HP infection, which was present in 24,8% of the patients. It was not possible to make a correlation between the risk factors for the development of gastric cancer and the histological findings because the casuistry resulted in a very limited sample with low prevalence of risk factors. Conclusion: Incisura angularis biopsy is important because it increased the number of cases in more advanced stages of intestinal metaplasia and atrophy. The study had limitations, the main one being the relatively small sample composed of healthy individuals, although mostly elderly


Subject(s)
Stomach Neoplasms , Biopsy , Gastritis , Atrophy , Helicobacter pylori , Risk Assessment , Metaplasia
3.
Chinese Medical Sciences Journal ; (4): 44-51, 2022.
Article in English | WPRIM | ID: wpr-928243

ABSTRACT

Objective To evaluate the gastric microbiome in patients with chronic superficial gastritis (CSG) and intestinal metaplasia (IM) and investigate the influence of Helicobacter pylori (H. pylori) on the gastric microbiome. Methods Gastric mucosa tissue samples were collected from 54 patients with CSG and IM, and the patients were classified into the following four groups based on the state of H. pylori infection and histology: H. pylori-negative CSG (n=24), H. pylori-positive CSG (n=14), H. pylori-negative IM (n=11), and H. pylori-positive IM (n=5). The gastric microbiome was analyzed by 16S rRNA gene sequencing. Results H. pylori strongly influenced the bacterial abundance and diversity regardless of CSG and IM. In H. pylori-positive subjects, the bacterial abundance and diversity were significantly lower than in H. pylori-negative subjects. The H. pylori-negative groups had similar bacterial composition and bacterial abundance. The H. pylori-positive groups also had similar bacterial composition but different bacterial relative abundance. The relative abundance of Neisseria, Streptococcus, Rothia, and Veillonella were richer in the I-HP group than in G-HP group, especially Neisseria (t=175.1, P<0.001). Conclusions The gastric microbial abundance and diversity are lower in H. pylori- infected patients regardless of CSG and IM. Compared to H. pylori-positive CSG group and H. pylori-positive IM, the relative abundance of Neisseria, Streptococcus, Rothia, and Veillonella is higher in H. pylori-positive patients with IM than in H. pylori-positive patients with CSG, especially Neisseria.


Subject(s)
Humans , Gastric Mucosa/microbiology , Gastritis, Atrophic/microbiology , Gastrointestinal Microbiome/genetics , Helicobacter Infections/microbiology , Helicobacter pylori/genetics , Metaplasia , RNA, Ribosomal, 16S/genetics , Stomach Neoplasms
4.
Rev. argent. cir. plást ; 27(2): 90-95, 20210000. fig
Article in Spanish | LILACS, BINACIS | ID: biblio-1357908

ABSTRACT

La metaplasia sinovial capsular mamaria es una patología poco frecuente, de origen desconocido, que se presenta generalmente con aumento de volumen mamario (colección líquida) en un período breve y frecuentemente unilateral el posoperatorio (3 meses o más). Su diagnóstico se realiza por punción con aguja fina guiada por ecografía y estudios histomorfológico y de inmunohistoquímica. Debe diferenciarse del linfoma anaplásico de células grandes asociado a implantes mamarios. El tratamiento consiste en extracción por punción de la colección líquida, reposo del brazo del lado afectado y en caso de recidivas cambio de implante e instilación de corticoides en bolsillo capsular. Presentación a propósito de un caso.


Breast capsular Synovial Metaplasia is a rare pathology of unknown origin, which usually occurs with increased breast volume (liquid collection) in a short and often unilateral postoperatively (3 months or more). Diagnosis is made with fine needle puncture guided by ultrasound and histomorphological and immunohistochemistry studies. It should differ from anaplastic large cell lymphoma associated with breast implants. Treatment consists of puncture extraction of the liquid collection, rest of the arm of the affected side and in case of relapses implant change and installation of Corticoids in capsular pocket. Filing on a case


Subject(s)
Humans , Female , Middle Aged , Reoperation , Drainage , Breast Implantation , Metaplasia/pathology
5.
Arq. bras. med. vet. zootec. (Online) ; 73(3): 653-657, May-June 2021. ilus
Article in English | LILACS, VETINDEX | ID: biblio-1278359

ABSTRACT

Squamous metaplasia of the rete ovarii is an ovarian pathologic change characterized by replacement of the normal single layered cuboidal epithelium of the rete ovarii by a stratified squamous keratinized epithelium. Uterus and ovaries from a local slaughterhouse pregnant crossbreed cow were evaluated through ultrasound, macroscopically and histologically. Grossly, there were multiple cysts in both ovaries, which were histologically characterized as rete ovarii cysts with squamous metaplasia and intraluminal accumulation of keratinized material. Squamous metaplasia of the rete ovarii has been previously reported in cows, however this is the first report of this condition in a pregnant animal, demonstrating that this ovarian change is compatible with pregnancy.(AU)


A metaplasia escamosa da rete ovarii é uma patologia ovariana caracterizada pela substituição do epitélio simples cuboidal normal da rete ovarii por um epitélio estratificado escamoso queratinizado. Útero e ovários de uma vaca mestiça gestante, proveniente de abatedouro, foram avaliados por ultrassonografia, macroscopia e histologia. Verificaram-se vários cistos em ambos os ovários, histologicamente caracterizados como cistos de rete ovarii com metaplasia escamosa, com acúmulo intraluminal de material queratinizado. Metaplasia escamosa da rete ovarii foi relatada anteriormente em vacas, porém este é o primeiro relato em que essa alteração ovariana é compatível com manutenção da ciclicidde ovariana e gestação na vaca.(AU)


Subject(s)
Animals , Female , Pregnancy , Cattle , Ovary/pathology , Teratoma/veterinary , Pregnancy, Animal/physiology , Estrous Cycle/physiology , Epidermal Cyst/veterinary , Epithelium/pathology , Metaplasia/veterinary
6.
Arq. gastroenterol ; 58(1): 39-47, Jan.-Mar. 2021. tab, graf
Article in English | LILACS | ID: biblio-1248990

ABSTRACT

ABSTRACT BACKGROUND: H. pylori chronic atrophic gastritis is a premalignant lesion, and its staging, according to OLGA and OLGIM systems aims to identify patients at increased risk of developing gastric cancer and optimize their follow-up. GastroPanel®, serum biomarkers panel including pepsinogen I (PGI), pepsinogen II (PGII), Gastrin 17 (G17) and anti- H. pylori antibodies is a noninvasive test for adenocarcinoma risk assessment in chronic H. pylori gastritis patients. OBJECTIVE: Prospective study to evaluate the concordance between OLGA and OLGIM grading systems, as well as to evaluate GastroPanel´s performance in patients with premalignant lesions secondary to H. pylori chronic gastritis in Brazil. METHODS: Patients with H. pylori chronic gastritis with premalignant lesions confirmed by histology were recruited from the gastrointestinal clinic of a University Hospital. All participants underwent endoscopic examination with biopsies which were reported according to updated Sydney system and premalignant lesions grading systems (OLGA and OLGIM). Blood samples were collected for biomarkers serological analysis (GastroPanel®, Biohit, Helsinki, Finland). The cut off values used to define high risk patients were those recommended by the manufacturer: PGI ≤30 µm/L and PGI/PGII ≤3. RESULTS: 41 patients were recruited: 28 women, 13 men, mean age 67.3 (47-89, SD: 9.6) years. By OLGA system, were obtained: OLGA 0 (n=1), OLGA I (n=7), OLGA II (n=17), OLGA III (n=9), and OLGA IV (n=7). By OLGIM system, were obtained: OLGIM 0 (n=14), OLGIM I (n=5), OLGIM II (n=10), OLGIM III (n=10), and OLGIM IV (n=2). Regarding histological staging among patients staged as low risk (OLGA/OLGIM 0, I and II) and high risk (OLGA/OLGIM III and IV) for gastric cancer development, the concordance rate found between both classifications was 85.4%. Considering high risk patients, those patients thus included in at least one of the systems the final distribution of our sample considered 24 low-risk and 17 high-risk patients for the development of gastric cancer. To determine by GastroPanel® whether the patient would be at low or high risk of developing gastric cancer, PGI showed a sensitivity, specificity and accuracy of 0.47 (95%CI: 0.26-0.69), 0.67 (95%CI: 0.47-0.82), and 0.58 (95%CI: 0.43-0.72), respectively, while PGI/PGII showed sensitivity, specificity and accuracy of 0.06 (95%CI: 0.01-0.27), 0.83 (95%CI: 0.64-0.93) and 0.51 (95%CI: 0.36-0.66), respectively. CONCLUSION: The histological classifications OLGA and OLGIM presented a substantial concordance rate among themselves. Simultaneous use of both histological classification systems increased the identification's rate of high-risk patients. Biomarker analysis was not effective to distinguish low to high risk patients in the studied population. Further studies are needed to validate its use in clinical practice in Brazil.


RESUMO CONTEXTO: Gastrite atrófica crônica por H. pylori constitui lesão pré-maligna e seu estadiamento de acordo com os sistemas OLGA e OLGIM, visa identificar pacientes com maior risco de desenvolver câncer gástrico e otimizar seu acompanhamento. GastroPanel® é um teste não invasivo composto por painel de biomarcadores séricos incluindo pepsinogênio I (PGI), pepsinogênio II (PGII), gastrina 17 (G17) e anticorpos anti- H. pylori para avaliação de risco de adenocarcinoma gástrico em pacientes com gastrite crônica por H. pylori. OBJETIVO: Estudo prospectivo para avaliar a concordância entre os sistemas de classificação OLGA e OLGIM, bem como avaliar o desempenho do GastroPanel® em pacientes com lesões pré-malignas secundárias à gastrite crônica por H. pylori no Brasil. MÉTODOS: Pacientes com gastrite crônica por H. pylori portadores de lesões pré-malignas confirmadas por histologia (gastrite atrófica e metaplasia intestinal) foram recrutados no ambulatório de gastroenterologia de um hospital universitário. Todos os participantes foram submetidos a exame endoscópico com biópsias de antro e corpo gástricos analisadas de acordo com o Sistema Sydney atualizado e estadiadas pelos Sistemas OLGA e OLGIM de classificação das gastrites. Amostras de sangue foram coletadas para análise sorológica de biomarcadores (GastroPanel®, Biohit, Helsinki, Finlândia). Os valores de corte utilizados para definir pacientes de alto risco para desenvolvimento de câncer gástrico foram os recomendados pelo fabricante: PGI ≤30 µm e PGI/PGII ≤3. RESULTADOS: Foram recrutados 41 pacientes: 28 mulheres, 13 homens, idade média 67,3 (47-89, DP: 9,6) anos. Pelo sistema OLGA, foram obtidos: OLGA 0 (n=1), OLGA I (n=7), OLGA II (n=17), OLGA III (n=9) e OLGA IV (n=7). Pelo sistema OLGIM, foram obtidos: OLGIM 0 (n=14), OLGIM I (n=5), OLGIM II (n=10), OLGIM III (n=10) e OLGIM IV (n=2). Em relação ao estadiamento histológico entre os pacientes de baixo risco (OLGA/OLGIM 0, I e II) e alto risco (OLGA/OLGIM III e IV) para o desenvolvimento de câncer gástrico, a taxa de concordância encontrada entre as duas classificações foi de 85,4%, com valor kappa=0,678 (IC95%: 0,440-0,916). Considerando como pacientes de alto risco, aqueles assim estadiados em pelo menos um dos sistemas, a distribuição final de nossa amostra encontrou 24 pacientes de baixo risco e 17 de alto risco para o desenvolvimento de câncer gástrico. Na determinação pelo GastroPanel® para classificação do paciente como de baixo ou alto risco para desenvolvimento de câncer gástrico, PGI mostrou sensibilidade, especificidade e acurácia de 0,47 (IC95%: 0,26-0,69), 0,67 (IC95%: 0,47-0,82) e 0,58 (IC95%: 0,43-0,72), respectivamente, enquanto a razão PGI/PGII mostrou sensibilidade, especificidade e acurácia de 0,06 (IC95%: 0,01-0,27), 0,83 (IC95%: 0,64-0,93) e 0,51 (IC95%: 0,36-0,66), respectivamente. CONCLUSÃO: As classificações histológicas OLGA e OLGIM apresentaram taxa de concordância substancial entre si. O uso simultâneo de ambos os sistemas de classificação histológica aumentou a taxa de identificação de pacientes de alto risco para desenvolvimento de câncer gástrico. Os resultados do GastroPanel® não foram eficazes para distinguir pacientes de baixo e alto risco para desenvolvimento de câncer gástrico na população estudada. Mais estudos são necessários para validar seu uso na prática clínica no Brasil.


Subject(s)
Humans , Male , Female , Aged , Stomach Neoplasms , Helicobacter pylori , Helicobacter Infections , Gastritis , Brazil , Biomarkers , Prospective Studies , Risk Factors , Metaplasia
7.
Autops. Case Rep ; 11: e2021318, 2021. tab, graf
Article in English | LILACS | ID: biblio-1285425

ABSTRACT

Epidermal inclusion cyst (EIC) of the thyroid is extremely rare in the clinical practice. A handful of cases have been documented in the past in the world literature. A giant EIC of the thyroid is hitherto unreported. This lesion may arise from the squamous metaplasia of the thyroid follicular cells. Though non-neoplastic, giant forms can cause compression of the vital structures of the neck. In the present case, we have described a giant epidermal inclusion cyst successfully managed with surgical management.


Subject(s)
Humans , Female , Middle Aged , Thyroid Gland/abnormalities , Epidermal Cyst/surgery , Rare Diseases , Metaplasia
8.
ARS med. (Santiago, En línea) ; 45(4): 12-19, nov. 11, 2020.
Article in Spanish | LILACS | ID: biblio-1255401

ABSTRACT

Introducción: el esófago de Barrett es una alteración en la cual la mucosa esofágica se transforma desde un epitelio escamoso a un epitelio columnar con metaplasia intestinal. Endoscópicamente esta lesión se corresponde con la presencia de una mucosa columnar de color rojo salmón por encima de la unión gatroesofágica. Para su diagnóstico se requiere de la sospecha endoscópica y la confirmación histológica. Objetivo: determinar los niveles de coincidencia entre los diagnósticos endoscópicos y las características histopatológicas del esófago de Barrett, a partir del análisis de una serie de casos. Métodos: se realizó un estudio retrospectivo, en el Hospital Clínico Quirúrgico "Joaquín Albarrán" de La Habana, Cuba entre enero de 2017 a junio de 2019, obteniéndose los datos de los registros de biopsias e historias clínicas. Se realizaron cálculos de frecuencias absolutas y relativas y, para evaluar la fuerza de coincidencia entre endoscopia e histología, se utilizó el estadístico Chi cuadrado. Resultados: en los 67 casos con diagnóstico endoscópico la coincidencia con histopatológica fue del 44,8%, en el restante 55,2% de los pacientes las lesiones diagnosticadas fue esofagitis crónica (p = 0,005). Conclusiones: el esófago de Barrett es una de las entidades clínicas con una epidemiología de alta variabilidad y su diagnóstico endos-cópicos requiere de la confirmación histológica ya que existe una baja coincidencia entre el diagnóstico endoscópico e histopatológico del EB el cual es el estándar de oro para el diagnóstico de EB.


Background: Barrett's oesophagus is an alteration in which the oesophagal mucosa is transformed from squamous epithelium to co-lumnar epithelium with intestinal metaplasia. Endoscopically this lesion corresponds to the presence of a salmon-red columnar mucosa above the gastroesophageal junction. For its diagnosis, endoscopic suspicion and histological confirmation are required.Objective: To determine the levels of coincidence between the endoscopic diagnoses and the histopathological characteristics of Barrett's oesophagus, from the analysis of a series of cases. Methods: A retrospective study was carried out at the "Joaquín Albarrán" Surgical Cli-nical Hospital in Havana, Cuba, between January 2017 and June 2019, obtaining data from biopsy records and medical records. Absolute and relative frequency calculations were performed and, to evaluate the force of coincidence between endoscopy and histology, the Chi-square statistic was used. Results: In the 67 cases with endoscopic diagnosis, the coincidence with histopathology was 44.8%, in the remaining 55.2% of the patients the lesions diagnosed were chronic esophagitis (p = 0.005). Conclusions: Barrett's oesophagus is one of the clinical entities with the epidemiology of high variability, and its endoscopic diagnosis requires histological confirmation since there is a low coincidence between the endoscopic and histopathological diagnosis of EB which is the gold standard for EB diagnosis.


Subject(s)
Humans , Barrett Esophagus , Endoscopy , Histology , Biopsy , Chi-Square Distribution , Medical Records , Retrospective Studies , Cuba , Diagnosis , Esophageal Mucosa , Metaplasia
9.
Metro cienc ; 28(4): 29-35, 2020/10/29. ilus
Article in Spanish | LILACS | ID: biblio-1151649

ABSTRACT

RESUMEN La metaplasia ósea endometrial es una patología poco común que se asocia a infertilidad secundaria. La mayoría de casos se presenta en mujeres con antecedente de gestación no evolutiva. La sospecha se hace mediante el hallazgo de un endometrio hiperecogénico que se asemeja a la imagen de un dispositivo intrauterino. El gold standard para el diagnóstico y tratamiento es la histeroscopia con el estudio histopatológico del material obtenido en el pre-cedimeinto. La importancia de su descripción es su presentación en una paciente nuligesta. Se describe el caso clínico y revisión de la literatura. Palabras claves: Metaplasia ósea endometrial, infertilidad secundaria, endometrio hiperecogénico


ABSTRACT Endometrial osseoum metaplasia is a rare condition associated with secondary infertility. Most cases occur in women with a histo-ry of non-evolutionary pregnancy. The suspicion is made by the finding of a hyperechoic endometrium that is similar of an intrauterine de-vice. The diagnostic and therapeutic gold standard is made by hysteroscopy with histopathological study of the material obtained in the precedure. The importance of this case is its presentation in a nulliparous patient. The clinical case and literature review are described


Subject(s)
Humans , Female , Adult , Middle Aged , Endometrium , Infertility , Metaplasia , Pathology , Therapeutics , Hysteroscopy
11.
Rev. gastroenterol. Perú ; 40(3): 260-266, Jul-Sep 2020.
Article in Spanish | LILACS | ID: biblio-1144673

ABSTRACT

RESUMEN La metaplasia intestinal gástrica y la gastritis atrófica son condiciones precancerosas conocidas (CPCs) del estómago, lo que significa que los pacientes con CPCs están en riesgo de desarrollar cáncer gástrico y, por lo tanto, el diagnóstico y la categorización de riesgo para estos pacientes es un tema relevante. El objetivo de esta revisión es proporcionar una actualización sobre el problema, el diagnóstico y el manejo de las CPCs con énfasis en el papel de la detección endoscópica adecuada.


ABSTRACT Gastric intestinal metaplasia and atrophic gastritis are a known precancerous condition (PCC) of the stomach, meaning that patients with PCC are at risk for gastric cancer and so, diagnosis and risk categorization for these patients is relevant. The aim of this review is to provide an update regarding the problem, diagnosis, and management of PCCs with an emphasis on the role of appropriate endoscopic detection.


Subject(s)
Humans , Stomach/pathology , Gastritis, Atrophic/diagnosis , Intestines/pathology , Diagnostic Techniques, Digestive System , Metaplasia/diagnosis
12.
Med. leg. Costa Rica ; 37(1): 62-73, ene.-mar. 2020. tab, graf
Article in Spanish | LILACS | ID: biblio-1098373

ABSTRACT

Resumen El carcinoma gástrico hoy en día es una de las principales causas de mortalidad a nivel mundial por neoplasias y especialmente en países como Costa Rica, que se cataloga como un país de alta incidencia. Existen múltiples factores de riesgo, siendo el primero y más importante la infección por Helicobacter pylori, que desencadena una cascada de diferentes lesiones, iniciando en atrofia gástrica, que puede llegar a finalizar en cáncer invasivo. Existen otros factores que pueden influir en un ambiente pro-carcinogénico tales como fumado, obesidad, la dieta, entre otros. Múltiples naciones han desarrollado diferentes guías de tamizaje para disminuir la mortalidad; sin embargo, en países con alta incidencia sigue siendo el estándar realizar estudios de imagen y endoscopia luego de determinada edad dependiendo de factores de riesgo.


Abstract Gastric carcinoma is nowadays one of the main causes of mortality worldwide due to neoplasms and especially in countries such as Costa Rica, which is classified as a high incidence country. There are multiple risk factors, starting with Helicobacter pylori infection being the most important one; after the infection a cascade with different lesions is triggered, first it begins with gastric atrophy and then eventually lead to an invasive cancer. There are other factors that can influence a pro-carcinogenic environment such as smoking, obesity, diet, among others. Multiple nations have developed different screening guidelines to reduce mortality, however in countries with high incidence it is still the gold-standard to perform imaging and endoscopy studies after a certain age and depending on risk factors.


Subject(s)
Humans , Stomach Neoplasms/diagnosis , Helicobacter pylori/drug effects , Peptic Ulcer/complications , Gastritis, Atrophic/diagnosis , Metaplasia
13.
Arch. argent. pediatr ; 118(1): e34-e38, 2020-02-00. ilus
Article in Spanish | LILACS, BINACIS | ID: biblio-1095860

ABSTRACT

La osteocondromatosis sinovial es una metaplasia benigna de la membrana sinovial que afecta a 1 de cada 100 000 personas, en su mayoría adultos, y es extremadamente infrecuente en edad pediátrica. Predomina en grandes articulaciones, sobre todo la rodilla, y la sintomatología es, por lo general, inespecífica. Dado que la radiografía simple no suele ser concluyente, se recurre a la resonancia magnética nuclear y a la tomografía axial computarizada para orientar el diagnóstico. Se expone el caso de una paciente de 10 años de edad con gonalgia y dismorfia en la patela izquierda de seis meses de evolución, con diagnóstico de osteocondromatosis sinovial. Se presenta el caso dado que se trata de una entidad muy rara en niños, pero que requiere un tratamiento quirúrgico precoz para evitar sus posibles complicaciones, como la destrucción articular progresiva o la malignización a condrosarcoma.


Synovial osteochondromatosis consists of a synovial metaplasia which affects 1 per 100 000 people. It is a very rare disease among children. It typically affects large joints of the body, especially the knee. Due to the lack of specificity of the signs and symptoms and X-Ray images, imaging tests such as nuclear magnetic resonance or computerized tomography are frequently needed for diagnosis.We report a case of a ten-year-old female patient with a six months history of pain and deformity of left patella which was diagnosed with synovial osteochondromatosis. This case highlights the importance of clinical suspicion, not only because it is an extremely rare disease in children, but also because it needs a surgical treatment as soon as possible in order to avoid consequences it might have in pediatric age, as joint destruction or malignization to chondrosarcoma.


Subject(s)
Humans , Female , Child , Chondromatosis, Synovial/surgery , Chondromatosis, Synovial/diagnostic imaging , Chondromatosis, Synovial/therapy , Chondrosarcoma/prevention & control , Knee Joint/abnormalities , Metaplasia
14.
Rev. méd. Paraná ; 78(2): 75-78, 2020.
Article in Portuguese | LILACS | ID: biblio-1222894

ABSTRACT

Justificativa: A Doença do Refluxo Gastroesofágico (DRGE) apresenta alta prevalência na população mundial. Uma de suas complicações, é o esôfago de Barrett (EB), uma alteração histológica pré-maligna do epitélio esofágico. O seu diagnóstico se da através do exame endoscópico e posterior confirmação histopatológica. Objetivo: Estimar a concordância diagnóstica, nos casos suspeitos de EB, entre o exame endoscópico e a análise histológica. Métodos: Foram analisados 151 pacientes, retrospectivamente, com suspeita diagnóstica de EB na endoscopia. Os dados foram obtidos a partir de prontuários eletrônicos, entre Julho de 2013 e Julho de 2014. Os laudos anatomopatológicos foram obtidos através de registros do laboratório Byori. Resultados: Entre os 151 pacientes submetidos a biópsias com suspeita endoscópica de EB, 47 (31,1%) obtiveram confirmação diagnóstica através do exame anatomopatológico. Conclusão: A endoscopia digestiva alta é um bom exame para detecção de metaplasia colunar, entretanto, nos casos de esôfago de Barrett, essa eficácia não se reproduziu.


Background: Gastroesophageal Reflux Disease (GERD) has a high prevalence in the world population. One of its complications is Barrett's esophagus (EB), a premalignant histological alteration of the esophageal epithelium. Its diagnosis is given through endoscopic examination and subsequent histopathological confirmation. Objective: Estimate at diagnostic agreement, we have suspense cases of EB, between endoscopic examination and histological analysis. Method: A total of 151 patients were retrospectively with suspected diagnosis of EB at endoscopy. Data were obtained from electronic medical records between July 2013 and July 2014. Anatomopathological reports were obtained from Byori laboratory records. Results: Among the 151 patients who underwent biopsy with endoscopic suspicion of EB, 47 (31.1%) obtained diagnostic confirmation through pathological examination. Conclusion: Upper digestive endoscopy is a good exam to detect columnar metaplasia, however, in Barrett's esophagus cases, this efficacy has not been reproduced.


Subject(s)
Humans , Barrett Esophagus , Duodenogastric Reflux , Endoscopy , Histology , Metaplasia
15.
Annals of Dermatology ; : 74-76, 2020.
Article in English | WPRIM | ID: wpr-782136
16.
Arq. gastroenterol ; 56(4): 419-424, Oct.-Dec. 2019. tab, graf
Article in English | LILACS | ID: biblio-1055178

ABSTRACT

ABSTRACT BACKGROUND: Helicobacter pylori infection is the most important risk factor for gastric atrophy and intestinal metaplasia, both considered gastric cancer precursor lesions. Therefore, the investigation of the occurrence of H. pylori infection, precursor lesions and associated factors guides the adoption of specific strategies for the control this type of cancer. OBJECTIVE: To evaluate the prevalence of H. pylori infection in patients undergoing upper digestive endoscopy, as well as the prevalence of intestinal metaplasia, atrophy and chronic inflammation and their association with H. pylori infection. METHODS: A retrospective study was performed based on reports of gastric endoscopic biopsies performed in a private laboratory affiliated to the Brazilian Public Health System (SUS). Patients were evaluated for age, gender and type of health service. The samples were evaluated for the presence of H. pylori, and also of chronic inflammation, intestinal metaplasia and glandular atrophy. RESULTS: Of a total of 4,604 patients (mean age 51±16.6), 63.9% were female and 63.1% coming from private health care service. The prevalence of H. pylori infection was 31.7% (n=1,459), and the percentage of infection was significantly higher in patients from public health service (42.0%) in relation to patients from private health service (25.6%). Among H. pylori (+) patients, a higher percentage of intestinal metaplasia (17.7% vs 13.3%) and glandular atrophy (17.6% vs 6.9%) were observed when compared to those H. pylori (-) (P<0.01). From the patients H. pylori (+) with at least one type of precursor lesion (n=418), 161 (38.5%) had metaplasia and chronic inflammation, 160 (38.3%) had atrophy and chronic inflammation and finally 97 (23.2%) presented metaplasia, atrophy and chronic inflammation simultaneously. CONCLUSION: The present study reinforces the association of H. pylori infection with gastric cancer precursor lesions in a Brazilian population, emphasizing the importance of infection prevention measures, as well as the treatment of infected patients, especially in regions with lower socioeconomic levels that show a higher prevalence of infection by H. pylori.


RESUMO CONTEXTO: A infecção por Helicobacter pylori é o fator de risco mais importante para atrofia gástrica e metaplasia intestinal, ambas consideradas lesões precursoras do câncer gástrico. Portanto, a investigação da ocorrência de infecção por H. pylori, das lesões precursoras e dos fatores associados orienta a adoção de estratégias específicas para o controle deste tipo de câncer. OBJETIVO: Avaliar a prevalência de infecção por H. pylori em pacientes submetidos à endoscopia digestiva alta, bem como a prevalência de metaplasia intestinal, atrofia e inflamação crônica e a associação destas com a infecção por H. pylori. MÉTODOS: Foi realizado um estudo retrospectivo com base em laudos de biópsias endoscópicas gástricas realizadas em laboratório privado afiliado ao Sistema Único de Saúde (SUS). Os pacientes foram avaliados quanto à idade, sexo e tipo de serviço de saúde. As amostras foram avaliadas quanto à presença de H. pylori e também de inflamação crônica, metaplasia intestinal e atrofia glandular. RESULTADOS: Do total de 4.604 pacientes (idade média de 51±16,6), 63,9% eram do sexo feminino e 63,1% provenientes de serviços de saúde privado. A prevalência de infecção por H. pylori foi de 31,7% (n=1.459) e o percentual de infecção foi significativamente maior nos pacientes do serviço público de saúde (42,0%) em relação aos pacientes do serviço privado de saúde (25,6%). Entre os pacientes com H. pylori (+), foi observado maior percentual de metaplasia intestinal (17,7% vs 13,3%) e atrofia glandular (17,6% vs 6,9%) quando comparados aos H. pylori (-) (P<0,01). Dos pacientes H. pylori (+) com pelo menos um tipo de lesão precursora (n=418), 161 (38,5%) apresentaram metaplasia e inflamação crônica, 160 (38,3%) apresentaram atrofia e inflamação crônica e, finalmente, 97 (23,2%) apresentaram metaplasia, atrofia e inflamação crônica simultaneamente. CONCLUSÃO: O presente estudo reforça a associação da infecção por H. pylori com lesões precursoras de câncer gástrico em uma população brasileira, enfatizando a importância de medidas de prevenção de infecção, bem como o tratamento de pacientes infectados, principalmente em regiões com níveis socioeconômicos mais baixos que apresentam maior prevalência de infecção por H. pylori.


Subject(s)
Humans , Male , Female , Adult , Aged , Stomach Neoplasms/microbiology , Helicobacter pylori , Helicobacter Infections/pathology , Precancerous Conditions/microbiology , Atrophy/microbiology , Stomach Neoplasms/pathology , Biopsy , Chronic Disease , Prevalence , Retrospective Studies , Risk Factors , Gastroscopy , Metaplasia/microbiology , Middle Aged
17.
Int. j. morphol ; 37(3): 917-927, Sept. 2019. graf
Article in Spanish | LILACS | ID: biblio-1012376

ABSTRACT

El carcinoma gástrico (CG) de tipo intestinal se origina en un epitelio displásico, que a su vez se desarrolla en medio de una atrofia gástrica (AG) y metaplasia intestinal (MI). La infección por Helicobacter pylori (HP) es la causa más frecuente de AG, causando una pangastritis atrófica multifocal. Entre otras condiciones que producen inflamación crónica de la mucosa gástrica se encuentran también la gastritis autoinmune y la anemia perniciosa. El marco conceptual sobre el cual descansa gran parte de la investigación actual y nuestra comprensión de los cambios que ocurren en la mucosa gástrica se debe a la denominada "cascada de Correa"; quien planteó que la mucosa gástrica crónicamente inflamada, da paso a la AG, que va adquiriendo focos de MI y en dicho epitelio se desarrollará finalmente una displasia (DIS). Se ha acuñado el término lesiones preneoplásicas gástricas (LPG), para referirse a: AG, MI y DIS.Después de la erradicación de HP, se ha demostrado una reducción general de la incidencia de CG; efecto que no es tan claro, cuando la pangastritis por HP ha evolucionado a AG extensa. De tal modo que el efecto de la erradicación de HP medido a través de EC, ha sido poco consistente. La AG grave diagnosticada por histología representa la condición de mayor riesgo. Por otra parte, la MI puede ser de tipo intestinal (delgado-entérica ó incompleta) y la colónica (colónica ó completa) considerándose a esta última, como la variedad de peor pronóstico. El diagnóstico histológico de este tipo de lesiones determina que quien las padece, debe someterse a vigilancia endoscópica. El objetivo de este manuscrito fue resumir la evidencia existente respecto de las LPG, en términos de su caracterización morfológica y sus repercusiones diagnóstico-terapéuticas (significado patológico, graduación del riesgo, vigilancia recomendada; y factores de riesgo).


Gastric carcinoma (GC) of intestinal type, originates from a dysplastic epithelium, which in turn develops in the midst of gastric atrophy (GA) and intestinal metaplasia (IM). Helicobacter pylori (HP) infection is the most frequent cause of GA, causing a multifocal atrophic pangastritis. Among other conditions that produce chronic inflammation of gastric mucosa are also autoimmune gastritis and pernicious anemia. The conceptual framework on which much of current research rests and our understanding of the changes that occur in the gastric mucosa is due to the so-called "Correa waterfall"; who stated that gastric mucosa chronically inflamed, gives way to the GA, which is acquiring foci of IM and in said epithelium a dysplasia (DIS) will eventually develop. The term precancerous conditions (PCC) of the gastric mucosa have been coined to refer to: GA, IM and DIS. After HP eradication, a general reduction in the incidence of GC has been demonstrated; effect that is not so clear, when pangastritis by HP has evolved to extensive GA. Thus, the effect of HP eradication measured through clinical trials has been inconsistent. Severe GA diagnosed represents the highest risk condition. On the other hand, IM can be enteric (grade I), enterocolic (grade II) or colonic (grade III); considering IM III as the variety with the worst prognosis. Histological diagnosis of gastric PCC, determines that the one who suffers them, must undergo endoscopic surveillance. The aim of this manuscript was to update morphological aspects and diagnostic-therapeutic scope of gastric PCC.


Subject(s)
Humans , Precancerous Conditions/pathology , Stomach Neoplasms/pathology , Precancerous Conditions/microbiology , Stomach Neoplasms/microbiology , Risk Factors , Helicobacter pylori , Helicobacter Infections/complications , Helicobacter Infections/pathology , Risk Assessment , Gastritis, Atrophic/microbiology , Gastritis, Atrophic/pathology , Intestines/microbiology , Intestines/pathology , Metaplasia/microbiology , Metaplasia/pathology
18.
Biomédica (Bogotá) ; 39(supl.2): 157-171, ago. 2019. tab, graf
Article in Spanish | LILACS | ID: biblio-1038836

ABSTRACT

Resumen Introducción. La inflamación del antro gástrico por Helicobacter pylori aumenta el riesgo de úlcera duodenal, y la del cuerpo gástrico puede producir gastritis atrófica e incrementar la probabilidad de cáncer gástrico. Estas reacciones inflamatorias diferenciadas según su localización, podrían explicarse por la composición de la microbiota gástrica asociada con H. pylori. Objetivo. Identificar y comparar la microbiota del antro y del cuerpo del estómago en individuos de dos poblaciones: una con alto riesgo y otra con bajo riesgo de cáncer gástrico en Nariño, Colombia. Materiales y métodos. Se incluyeron biopsias del cuerpo y el antro gástrico de pacientes con gastritis no atrófica o con gastritis atrófica y metaplasia. La microbiota se definió por secuenciación de la región V3-V4 del gen 16S del ARNr de H. pylori (illumina-MiSeq™). Las unidades taxonómicas operativas se clasificaron utilizando las bases de datos BLASTn y RDPII. Las diferencias entre las poblaciones microbianas del antro y del cuerpo gástrico se evaluaron mediante el análisis de varianza multivariado con base en permutaciones (Permutational Multivariate Analysis of Variance, PERMANOVA) y análisis multivariados. Resultados. La clase Epsilonproteobacteria representada por H. pylori fue más abundante en las biopsias del antro y del cuerpo de los individuos con gastritis no atrófica (>50 %), en tanto que, en los individuos con gastritis no atrófica, esta clase correspondió al 20 % con una mayor diversidad metagenómica. La infección por H. pylori disminuyó significativamente la diversidad metagenómica del antro (p=0,005), en comparación con la del cuerpo gástrico. Conclusiones. Los grupos bacterianos involucrados en la disbacteriosis pueden colonizar ambas regiones topográficas del estómago, independientemente de las reacciones sectorizadas de inflamación. La infección por H. pylori asociada con la microbiota gástrica está relacionada con su localización en el estómago, el tipo de lesión y el mayor o menor riesgo de cáncer gástrico, lo que sugiere su importancia en la disbacteriosis y la de esta en la enfermedad gástrica.


Abstract Introduction: Inflammation in the gastric antrum caused by Helicobacter pylori increases the risk of duodenal ulcer while inflammation in the body generates atrophic gastritis and increased risk of gastric cancer. These inflammatory responses according to gastric topography could be explained by the composition of the gastric microbiota associated with H. pylori. Objective: To identify and compare the microbiota of the gastric antrum and body of individuals from two populations, one with high risk and one with low risk of gastric cancer from Nariño, Colombia. Materials and methods: Biopsies of the gastric antrum and body of patients with non-atrophic gastritis or metaplastic atrophic gastritis were included. The microbiota was defined by sequencing the 16S rRNA gene, V3-V4 region, (illumina-MiSeq™). The operational taxonomic units were classified using the BLASTn and RDPII databases. The differences among microbial populations were evaluated with the PERMANOVA and multivariate analyses. Results: The Epsilonproteobacteria class represented by H. pylori was more abundant in the antrum and body biopsies of individuals with metaplastic atrophic gastritis (>50%) while in individuals with non-atrophic gastritis it was 20 % and had greater metagenomic diversity. Helicobacter pylori infection significantly decreases the metagenomic diversity of the gastric antrum (p=0.005) compared to that of the body. Conclusions: The bacterial groups involved in the dysbiosis can colonize both topographic regions of the stomach, regardless of the sectorized inflammation responses. Helicobacter pylori infection associated with the gastric microbiota is related to its localization in the stomach, the type of lesion, and the population at risk of gastric cancer, which suggests its importance in microbial dysbiosis and gastric disease.


Subject(s)
Adult , Aged , Female , Humans , Male , Middle Aged , Stomach/microbiology , Stomach Neoplasms/epidemiology , Gastrointestinal Microbiome , Gastritis/microbiology , Pyloric Antrum/microbiology , Risk , Helicobacter pylori/isolation & purification , Helicobacter pylori/genetics , Helicobacter Infections/microbiology , Helicobacter Infections/epidemiology , Colombia/epidemiology , Ribotyping , Gastric Mucosa/microbiology , Gastric Mucosa/pathology , Gastritis/epidemiology , Gastritis, Atrophic/microbiology , Gastritis, Atrophic/epidemiology , Metaplasia
19.
Medicina (Ribeiräo Preto) ; 52(3)jul.-set. 2019.
Article in Portuguese | LILACS | ID: biblio-1025786

ABSTRACT

A mucosa vesical, na presença de agentes agressores, sofre alterações inicialmente benignas, mas com a cronicidade pode sofrer modificações potencialmente metaplásicas. A cistite glandular apresenta um quadro sintomático inespecífico, sendo necessária a realização de biópsia para seu diagnóstico e diferenciação histológica, podendo dividir-se em subtipos clássico e intestinal. Após análise de prontuário médico pertencente ao Hospital Santa Rita de Maringá, objetiva-se relatar o caso de um paciente masculino, de 32 anos, com disúria e dor em hipogástrico, apresentando em ultrassonografia lesão cística de 3,8 cm de diâmetro na bexiga. Após a retirada da lesão por ressecção transuretral, a análise histopatológica revelou presença de ninhos de Von Brunn, áreas de epitélio mucossecretor e mucina extracelular na mucosa vesical, propondo a existência de lesão glandular com metaplasia intestinal. Foi realizado estudo imunohistoquímico para diagnóstico diferencial de adenocarcinoma mucossecretor bem diferenciado. A cistite glandular, quando manifestada macroscopicamente, assemelha-se a uma neoplasia por apresentar um aspecto irregular, difuso e algumas vezes ulceroso. Seu diagnóstico e tratamento podem ser simultâneos, porém, nos casos mais graves, as opções terapêuticas são restritas. O diagnóstico diferencial é extremamente importante para afastar a possibilidade de adenocarcinoma vesical, portanto, é imprescindível o acompanhamento periódico dos pacientes após o tratamento com a realização de exames específicos. O uso de marcadores imunohistoquímicos tem se tornado relevante para o correto diagnóstico, pois genes relacionados ao ciclo celular, como o fator de transcrição homebox 2 do tipo caudal (CDX2), podem representar um vínculo entre o surgimento de metaplasia e sua possível progressão a adenocarcinoma. (AU)


The bladder's mucosa, in the presence of aggressive agents, undergoes initially benign changes, but with chronicity may undergo potentially metaplastic modifications. Glandular cystitis presents nonspecific symptoms and biopsy is necessary for diagnosis and histological differentiation, subdividing it into classic and intestinal subtypes. After analyzing a medical record belonging to the Santa Rita Hospital from Maringá, the objective of this study is to report the case of a 32-year-old male patient with dysuria and pain in the hypogastric region, presenting on ultrasonography cystic lesion of 3.8 cm of diameter in the bladder. After removal of the lesion by transurethral resection, the histopathological analysis revealed the presence of Von Brunn nests, areas of mucosecretory epithelium and extracellular mucin in the bladder's mucosa, suggesting the existence of a glandular lesion with intestinal metaplasia. It was performed an immunohistochemical study for differential diagnosis of well-differentiated mucosecretory adenocarcinoma. Glandular cystitis, when manifest-ed macroscopically, resembles a neoplasm, since it can present an irregular aspect, diffuse and sometimes ulcerous. The diagnosis and treatment can be simultaneous, but in severe cases, the therapeutic options are restricted. Differential diagnosis is extremely important to rule out the possibility of bladder adenocarcinoma, therefore it is essential to follow up patients after treatment with specific tests periodically. The use of immunohistochemical markers has become rele-vant for the correct diagnosis, since genes related to the cell cycle, such as caudal type homeobox transcription factor 2 (CDX2), may represent a link between the onset of metaplasia and its possible progression to adenocarcinoma (AU)


Subject(s)
Humans , Male , Adult , Urologic Surgical Procedures, Male , Cystitis , Metaplasia
20.
Rev. gastroenterol. Perú ; 39(1): 12-20, ene.-mar. 2019. ilus, tab
Article in Spanish | LILACS | ID: biblio-1014121

ABSTRACT

Objetivos: Determinar la prevalencia de pólipos gástricos detectados mediante endoscopía digestiva alta, en pacientes mayores de 18 años del Hospital Cayetano Heredia, en el periodo 2007-2016. Materiales y métodos: Estudio retrospectivo de corte transversal, realizado con datos de biopsias gástricas de pacientes sometidos a endoscopía digestiva alta entre enero de 2007 y julio de 2016. Se evaluó cambios histológicos asociados, datos demográficos y características endoscópicas, las cuales fueron sometidas a análisis estadístico mediante STATA v14.2. Resultados: En una población de 16 552 endoscopías realizadas, se encontró 407 biopsias compatibles con pólipos gástricos, lo cual da una prevalencia de 2,5%. Los pólipos gástricos fueron más frecuentes en mujeres (62,38%). La mediana de edad fue de 61 años (52-71 años). El tipo histológico más frecuente fue el pólipo glandular fúndico (PGF) (44,85%), seguido de pólipo hiperplásico (38,48%) y adenomatoso (15,23%). La localización más frecuente fue en fondo/cuerpo (48,65%, p=0,001) Se detectó la presencia de Helicobacter pylori (Hp) en el 30,6% de las biopsias compatibles con pólipos. Conclusión: La prevalencia de pólipos gástricos es similar con otras regiones del mundo; los PGF e hiperplásicos son los más frecuentes. Los pólipos adenomatosos estuvieron en mayor relación a cambios como metaplasia y displasia.


Objectives: Establish the prevalence of gastric polyps detected by upper gastrointestinal endoscopy in patients older than 18 years old during the period from 2007 - 2016 in Cayetano Heredia Hospital. Materials and methods: Retrospective cross- sectional study, performed with data from the gastric biopsies reports of patients that have undergone upper gastrointestinal endoscopy between January 2007 and July 2016. Demographic data, endoscopic characteristics of the polyps and associated histological changes of the surrounding gastric mucosa were evaluated, which were subjected to statistical analysis using STATA v14.2. Results: In a population of 16 552 endoscopies, 407 gastric polyps biopsies were found. These results give a prevalence of 2.5% .Gastric polyps were detected predominantly in women (62.38%). The median age was 61 years (52-71 years). The most frequent histological type was the fundic gland polyp (FGP) (44.85%), followed by the hyperplastic (38.48%) and adenomatous (15.23%) polyp. The most frequent location was in the fundus / corpus (48.65%, p = 0.001). The presence of Hp was detected in 30.6% of the biopsies with polyps. Conclusion: The prevalence of gastric polyps is similar to other regions of the world; PGF and hyperplastic are the most frequent. Adenomatous polyps showed a greater relationship with and metaplasia and dysplasia.


Subject(s)
Aged , Female , Humans , Male , Middle Aged , Stomach Neoplasms/epidemiology , Adenomatous Polyps/epidemiology , Peru/epidemiology , Stomach Neoplasms/classification , Stomach Neoplasms/pathology , Biopsy , Hospitals, Urban/statistics & numerical data , Prevalence , Cross-Sectional Studies , Retrospective Studies , Helicobacter pylori/isolation & purification , Helicobacter Infections/pathology , Helicobacter Infections/epidemiology , Gastroscopy , Adenomatous Polyps/classification , Adenomatous Polyps/pathology , Gastric Mucosa/pathology , Gastritis/pathology , Gastritis/epidemiology , Hospitals, Public/statistics & numerical data , Hyperplasia , Inflammation , Metaplasia
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