Hemangioendotelioma kaposiforme: correlação radiológica, cirúrgica e anatomopatológica / Kaposiform hemangioendothelioma: radiological, surgical and anatomopathological correlation

Introdução: O hemangioendotelioma cutâneo kaposiforme (HEK) é um tumor vascular raro localmente agressivo, visto principalmente em recém-nascidos e crianças. Tem prevalência de 0,91 casos por 100.000 crianças, mais comum nas extremidades. O tratamento de escolha é a ressecção total, todavia muitas vezes não é possível devido à extensão da lesão e associação ao fenômeno de Kasabach-Merritt. Objetivos: Descrever a evolução de caso raro de tumor na região plantar de criança, correlacionando os achados radiológicos, cirúrgicos e histopatológicos. Métodos: Os autores relatam o caso de menino admitido aos cinco anos de idade com lesão cutânea plantar dolorosa recidivada. No exame de ressonância magnética (RMN) apresentava lesão na região plantar posterior medindo 3cmx2cm, superficial à fáscia plantar, no exame de biópsia revelou hemangioendotelioma kaposiforme, sem associação com o fenômeno de Kasabach- Merritt. Foi submetido a procedimento cirúrgico para exérese, apresentou recidiva após seis meses. Foi realizada nova ressecção ampla, reconstrução com retalho plantar e enxerto de pele parcial, obtendo-se margens livres, sem recidiva no seguimento de 15 anos. Conclusão: Os achados clínicos sugeriam fibromatose plantar, a RMN auxiliou na delimitação do tumor, o exame histopatológico com imunohistoquímica confirmaram o diagnóstico de hemangioendotelioma cutâneo kaposiforme. Realizou-se ressecção até a fáscia com recidiva, sendo necessária reabordagem e ressecção até o periósteo com a reconstrução com retalho plantar e enxerto de pele, sem recidiva no seguimento de 15 anos. Os autores chamam a atenção para a ressecção ampla de margens profundas e laterais para controle do crescimento tumoral.

Introduction: Kaposiform cutaneous hemangioendothelioma (HEK) is a rare locally aggressive vascular tumor, seen mainly in newborns and children. It has a prevalence of 0.91 cases per 100,000 children, being most common in the extremities. The treatment of choice is total resection; however, it is often not possible due to the lesion's extent and association with the Kasabach-Merritt phenomenon. Objectives: To describe the evolution of a rare tumor in the plantar region of a child, correlating the radiological, surgical, and histopathological findings. Methods: The authors report the case of a boy admitted at the age of five with a recurrent painful plantar skin lesion. In the magnetic resonance examination (NMR), he presented a lesion in the posterior plantar region measuring 3cmx2cm, superficial to the plantar fascia. In the biopsy examination, he revealed kaposiform hemangioendothelioma without association with the Kasabach-Merritt phenomenon. He underwent a surgical procedure for excision and presented recurrence after six months. A new broad resection, reconstruction with a plantar flap, and partial skin graft were performed, obtaining free margins, with no recurrence in the 15-year follow-up. Conclusion: Clinical findings suggested plantar fibromatosis, NMR helped in delimiting the tumor, and histopathological examination with immunohistochemistry confirmed the diagnosis of kaposiform cutaneous hemangioendothelioma. Resection was performed up to the fascia with recurrence, requiring re-approach and resection to the periosteum with reconstruction using a plantar flap and skin graft, without recurrence after 15 years. The authors call attention to the wide resection of deep and lateral margins to control tumor growth.

Primary malignant neoplasms of the cecal appendix: unusual findings in acute appendicitis

Introduction: To evaluate the prevalence of appendix neoplasia correlating with patient profile, histological types and frequency. Methods: Data collection was performed in the Pathology Department of a General Hospital, with the objective of identifying patients diagnosed with malignant cecal appendix tumors by histopathologic study of specimens from acute appendicitis. Results: The prevalence of malignant primary epithelial neoplasia of the appendix was 1%. Fifty percent of the cases were neuroendocrine tumors, 35% were mucinous, and 15% were adenocarcinomas. The mean age at diagnosis was 41.3 (SD, 20.4) years (range 16-81), with a women/men ratio of 3:1. Discussion: Appendiceal neoplasms are rare and should be suspected manly in women over 40 years of age with suggestive symptoms of acute appendicitis. The size, location, extent, margins and presence of mucin are essential findings for the treatment of these patients. (AU)

Hernia de Grynfelt resuelta por vía laparoscópica: reporte de un caso / Grynfelt ́s hernia resolved laparoscopically: a case report

RESUMEN Las hernias lumbares son una patología rara que involucra herniación de los contenidos intraabdominales o retroperitoneales a través de debilidades congénitas o adquiridas en la pared abdominal posterolateral. El tratamiento quirúrgico es el recomendado, sin embargo, la vía de abordaje aún no está estandarizada en la literatura, pero existe mucha evidencia a favor de la laparoscopía con mejores resultados en el control del dolor posoperatorio, resultados estéticos y menor estancia hospitalaria. Se presenta el caso clínico de una paciente feme-nina de 55 años con cuadro de dolor lumbar izquierdo de 6 meses de evolución que fue diagnosticada de hernia del triángulo posterior por estudio de imagen. La reparación de su defecto herniario fue con tratamiento quirúrgico por vía laparoscópica.Palabras claves: Hernia; cirugía laparoscópica; procedimientos quirúrgicos operativos; patología quirúrgica; informes de caso.

ABSTRACT Lumbar hernia are a rare pathology that involves herniation of the intra-abdominal or retroperitoneal contents through congenital or ac-quired weaknesses in the posterolateral abdominal wall. Surgical treatment is recommended, however, the approach is not yet standard-ized in the literature, but there is much evidence in favor of laparoscopy with better results in postoperative pain control, cosmetic results, and shorter hospital stay. We present the clinical case of a 55-year-old female patient with a 6-month history of left lumbar pain who was diagnosed with posterior triangle hernia by imaging study. The repair of her hernia defect was with laparoscopic surgical treatment.Keywords: Hernia; laparoscopic surgery; operative surgical procedures; surgical pathology; case report.

Prevalence of lymph node involvement in patients with endometrial cancer, Colombia 2009-2016: Exploratory analysis of associated factors / Prevalencia del compromiso ganglionar en pacientes con cáncer de endometrio, colombia 2009-2016: análisis exploratorio de factores asociados

RESUMEN Objetivo: determinar la prevalencia del compro miso ganglionar de pacientes con cáncer de endometrio y hacer una exploración de los factores asociados a la invasión ganglionar. Materiales y métodos: estudio de prevalencia con análisis exploratorio. Se incluyeron pacientes con cáncer de endometrio llevadas a histerectomía abdominal total más salpingooforectomía bilateral y linfadenectomía pélvica, con o sin linfadenectomía paraaórtica en siete centros de oncología de Colombia, en el periodo 2009-2016. Se excluyeron pacientes con radioterapia o quimioterapia previa, diagnóstico histológico de tumores neuroendocrinos, carcinosarcomas, tumores sincrónicos o metacrónicos. Muestreo no probabilístico. Tamaño muestral n = 290. Variables medidas: sociodemográficas, clínicas e histopatológicas y compromiso ganglionar pélvico o paraaórtico. Se presenta la prevalencia de periodo; el análisis exploratorio se realizó por medio de odds ratio (OR) crudo y el ajustado mediante un modelo multivariado (regresión logística no condicional). Resultados: se obtuvieron 467 casos de los cuales se excluyeron 163 por no presentar la totalidad de las variables, se estudiaron 304 pacientes. La prevalencia del compromiso ganglionar fue del 15,8 % (48/304). Los factores asociados al compromiso ganglionar en el análisis crudo y ajustado fueron la invasión linfovascular (OR ajustado = 9,32; IC 95 %: 4,27-21,15) e invasión miometrial (OR ajustado = 3.95; IC 95 %: 1,29-14,98). Conclusión: el 15 % de las pacientes sometidas a linfadenectomía tienen compromiso ganglionar. Se deben evaluar alternativas diagnósticas menos invasivas que la cirugía radical para establecer la invasión ganglionar.

ABSTRACT Objective: To determine the prevalence of lymph node involvement in patients with endometrial cancer and to explore factors associated with lymph node invasion. Materials and methods: Prevalence study with exploratory analysis. The study included patients with endometrial cancer who underwent total abdominal hysterectomy plus bilateral salpyingooophorectomy and pelvic lymphadenectomy with or without para-aortic lymphadenectomy in seven oncology centers in Colombia between 2009 and 2016. Patients who had received prior radiotherapy or chemotherapy, with a histological diagnosis of neuroendocrine tumors, carcinosarcomas or synchronous or metachronous lesions were excluded. Non-probabilistic sampling. Sample size n=290. Measured variables: sociodemographic, clinical and histopathological, and pelvic or para-aortic lymph node involvement. The prevalence for the period is presented. The exploratory analysis was conducted using crude odds ratio (OR) and adjusted OR by means of a multivariate model (unconditional logistic regression). Results: Overall, 467 cases were retrieved. Of them, 163 were excluded because of non-availability of all the variables. In total, 304 patients were studied. The prevalence of lymph node involvement was 15.8 % (48/304). In the crude and adjusted analysis, factors associated with lymph node involvement were lymphovascular invasion (adjusted OR: 9.32; 95 % CI 4.27-21.15) and myometrial invasion (adjusted OR: 3.95; 95 % CI 1.29-14.98). Conclusion: Of the patients undergoing lymphadenectomy, 15 % have lymph node involvement. Less invasive diagnostic options than radical surgery to ascertain lymph node invasion should be assessed.

Predicting the Probability of Lymph Node Involvement with Prostate Cancer Nomograms: Can We Trust the Prediction Models? / Predicción de la probabilidad de compromiso ganglionar con nomogramas para cáncer de próstata. ¿Podemos confiar en los modelos de predicción

Introduction Prediction of lymph node involvement (LNI) is of paramount importance for patients with prostate cancer (PCa) undergoing radical prostatectomy (RP). Multiple statistical models predicting LNI have been developed to support clinical decision-making regarding the need of extended pelvic lymph node dissection (ePLND). Our aim is to evaluate the prediction ability of the best-performing prediction tools for LNI in PCa in a Latin-American population. Methods Clinicopathological data of 830 patients with PCa who underwent RP and ePLND between 2007 and 2018 was obtained. Only data from patients who had ≥ 10 lymph nodes (LNs) harvested were included (n = 576 patients). Four prediction models were validated using this cohort: The Memorial Sloan Kettering Cancer Center (MSKCC) web calculator, Briganti v.2017, Yale formula and Partin tables v.2016. The performance of the prediction tools was assessed using the area under the receiver operating characteristic (ROC) curve (AUC). Results The median age was 61 years old (interquartile range [IQR] 56­66), the median Prostate specific antigen (PSA) was 6,81 ng/mL (IQR 4,8­10,1) and the median of LNs harvested was 17 (IQR 13­23), and LNI was identified in 53 patients (9.3%). Predictions from the 2017 Briganti nomogram AUC (0.85) and the Yale formula AUC (0.85) were the most accurate; MSKCC and 2016 Partin tables AUC were both 0,84. Conclusion There was no significant difference in the performance of the four validated prediction tools in a Latin-American population compared with the European or North American patients in whom these tools have been validated. Among the 4 models, the Briganti v.2017 and Yale formula yielded the best results, but the AUC overlapped with the other validated models.

Introducción La predicción del compromiso ganglionar es de suma importancia en pacientes con cáncer de próstata (CaP) que se van a someter a prostatectomía radical (PR). Múltiples modelos estadísticos se han desarrollado para predecir el riesgo de compromiso ganglionar y facilitar las decisiones clínicas de realizar o no linfadenectomía pélvica ampliada (LPA). Nuestro objetivo es evaluar la habilidad de predicción de las mejores herramientas de predicción de compromiso ganglionar en CaP en una población latinoamericana. Métodos Se evaluaron los datos clínico-patológicos de 830 pacientes con CaP sometidos a PR y LPA entre el 2007­2018. Solo se analizaron os pacientes con 10 o más ganglios extraídos (n = 576). Cuatro modelos de predicción fueron validados en esta cohorte: el modelo de la calculadora online del Memorial Sloan Kettering Cancer Center (MSKCC), el Briganti v.2017, la fórmula de Yale, y tablas de Partin v.2016. Se evaluó el desempeño de los modelos con curvas de características operativas del receptor (COR) y el área bajo la curva (ABC). Resultados La mediana de edad fue 61 años (rango intercuartílico [RI]: 56­66), mediana de Prostate specific antigen (PSA) 6,81 ng/mL (RI: 4,8­10,1), y mediana de ganglios extraídos 17 (RI: 13­23); se documentó compromiso ganglionar en 53 pacientes (9.3%). La habilidad de predicción del nomograma de Briganti v.2017 ABC (0,85) y la fórmula de Yale ABC (0,85) fueron las más precisas. El modelo del MSKCC y las tablas de Partin v.2016 mostraron AUC de 0,84 ambos. Conclusiones No encontramos diferencia estadisticamente significativa en el desempeño de los cuatro modelos de predicción validados en esta población latinoamericana comparada con pacientes norteamericanos o europeos en los que estas herramientas fueron desarrolladas. Entre los 4 modelos, el nomograma de Briganti v.2017 y la fórmula de Yale mostraron los mejores resultados; sin embargo, el AUC se sobrepone con los otros modelos validados.

Agreement between surgical and histopathological findings in patients with acute appendicitis at a level III hospital in Bogotá, Colombia / Concordancia entre los hallazgos quirúrgicos e histopatológicos en pacientes con apendicitis aguda en un hospital de tercer nivel deBogotá, Colombia

Introduction. Currently surgical findings dictate the post-operative treatment of patients with acute appendicitis; however, this relies only on the judgement of the surgeon during the appendectomy. This study aimed to determine the inter-rater reliability between surgeons and pathologists at a tertiary hospital.Methods. This was a cross-sectional retrospective study conducted between October 2015 and October 2016 at the Central Military Hospital in Bogotá. Patients who underwent appendectomy due to suspected acute appendicitis and had histopathological with their respective surgical findings were included. Our aim was to determine the agreement between surgical and pathology reports. Results. During the study period, we identified 418 patients who underwent appendectomy. Surgeons assessed 32 (7.77%) appendix as negative, 78 (18.93%) as inflamed, 110 (26.7%) as suppurative, 137 (33.25%) gangrenous and 55 (13.35%) as perforated. Highest agreement was observed in patients with suppurative appendicitis (82/110; 74.5%). Overall Kappa indicated a poor-fair agreement between the pathologist and surgeons (Kappa = 0.2950, 95% CI 0.2384-035.17, p < 0.0001).Conclusion. There is a poor concordance between surgical and pathologic findings in our study, which is similar to previous articles. As a take home message, surgeons and pathologist should revise the definition of the clinical and the histopathological criteria to better describe the findings and reach a better agreement

Introducción. Los hallazgos quirúrgicos actuales dictan el tratamiento postoperatorio de los pacientes con apendicitis aguda; sin embargo, esto se basa únicamente en el juicio del cirujano durante la apendicectomía. Este estudio tuvo como objetivo determinar la correlación de la evaluación entre cirujanos y patólogos en un hospital de tercer nivel. Métodos. Estudio transversal retrospectivo realizado entre octubre de 2015 y octubre de 2016 en el Hospital Militar Central de Bogotá. Se incluyeron pacientes que se sometieron a apendicectomía debido a sospecha de apendicitis aguda y tenían histopatología con sus respectivos hallazgos quirúrgicos. Nuestro objetivo fue determinar la concordancia entre el informe quirúrgico y el de patología.Resultados. Durante el período de estudio, identificamos a 418 pacientes que se sometieron a apendicectomía. Los cirujanos evaluaron 32 (7,77%) apéndices como negativos, 78 (18,93%) como inflamados, 110 (26,7%) como supurativos, 137 (33,25%) gangrenosos y 55 (13,35%) como perforados. La mayor concordancia se observó en pacientes con apendicitis supurativa (82/110; 74.5%). En general, Kappa indicó un acuerdo poco equitativo entre el patólogo y los cirujanos (Kappa = 0.2950, IC 95% 0.2384-035.17, p <0.0001).Conclusión. Hay una pobre concordancia entre los hallazgos quirúrgicos y patológicos en nuestro estudio, similar a los documentos médicos anteriores. Como mensaje, los cirujanos y el patólogo deben revisar la definición de los criterios clínicos e histopatológicos para describir mejor los hallazgos y llegar a un mejor acuerdo

Parasites found in surgical pathology: the institutional experience

Background: Parasitic infestation has a worldwide prevalence and it affects almost all age groups and both the sexes. The incidence of these infections is slowly rising in today’s era. Parasites are mainly found in stool samples but due to increase in a immunocompromised state now a days, tissue parasitaemia has increased globally necessitating more such type of studies. Parasite found in surgical pathology either incidentally or in clinically suspicious cases not only improves morbidity but also saves clinician’s time and patient’s money.Methods: A retrospective-cross sectional study is done based on histomorphological and cytomorphological evaluation of 25 cases diagnosed at The Department of pathology, New Civil Hospital Surat from January 2015 to January 2017.Results: Most common parasite seen was Echinococcus presenting as hydatid cyst in liver followed by filariasis. Most common age group affected was 0-20 years of age. Most common intestinal parasite found in our study was Entamoeba histolytica. Patients presented with variety of symptoms.Conclusions: Distribution of parasite in tissue section in relation to frequency, age, sex, various system involvements and its correlation with clinical symptoms are analyzed in our study.

Calcinose idiopática escrotal: uma inabitual desordem de pele / Idiopathic scrotal calcinosis: an unusual skin disorder

A calcinose escrotal idiopática é uma entidade rara, benigna. Não costuma ter outros sintomas associados. O caso reportado se trata de um paciente de 30 anos com diversos nódulos calcificados em bolsa escrotal, com 15 anos de evolução. Como medida terapêutica, foi realizada excisão cirúrgica completa dos nódulos, apresentando boa evolução cirúrgica e resultados estético e funcional satisfatórios.

Idiopathic scrotal calcinosis is a rare benign entity. Patients affected by scrotal calcinosis usually do not have other associated symptoms. We report the case of a 30-yearold man with several calcified nodules in the scrotal sac with onset at age 15 years. A complete surgical excision of the nodules was performed, and the patient recovered well with satisfactory aesthetic and functional results.

Lesión de Dieulafoy en estómago como causa de sangrado gastrointestinal alto: presentación de un caso / Dieulafoy's lesion in stomach as cause of upper gastrointestinal bleeding: case report

Resumen La lesión de Dieulafoy representa aproximadamente el 2% de todos los casos de hemorragia gastrointestinal superior. En la mayoría de casos esta anomalía se ubica en el estómago, principalmente en la curvatura menor. Se presenta el caso de un adulto joven con hematemesis y signos de hipovolemia. Durante la esofagogastroduodenoscopia se evidenció un coágulo adherido en el cuerpo gástrico a nivel de la curvatura mayor, sugestivo de lesión de Dieulafoy. Inicialmente se realizó manejo médico sin mejoría significativa, por lo que se realizó laparotomía exploratoria con resección de la malformación vascular, finalmente con el informe histopatológico se confirmó el diagnóstico. A pesar de ser una causa infrecuente de hemorragia gastrointestinal superior, la lesión de Dieulafoy debe considerarse entre los diagnósticos diferenciales, especialmente si la hemorragia persiste aún con manejo médico. MÉD.UIS.2019;32(i):27-31.

Abstract Dieulafoy's lesion represents approximately 2% of all causes of upper gastrointestinal bleeding. In most cases, this malformation is located in the stomach, mainly in the lesser curvature. We present the case of a young adult with hematemesis and signs of hypovolaemia. During the esophagogastroduodenoscopy, a clot adhering to the gastric body was seen at the level of the greater curvature, suggestive of Dieulafoy's lesion. Initially, medical management was performed without significant improvement, so an exploratory laparotomy was performed with resection of the vascular malformation, the histopathological report confirmed the diagnosis. Despite being an uncommon cause of upper gastrointestinal bleeding, the Dieulafoy lesion must be considered among the differential diagnoses, especially if the hemorrhage persists even with medical management. MÉD.UIS.2019;32(1):27-31.

Clinical value of abdominal ultrasound in the diagnosis of acute appendicitis / 中国基层医药

Objective@#To investigate the clinical value of abdominal ultrasound in the diagnosis of acute appendicitis.@*Methods@#From March 2015 to April 2017, 60 patients with acute appendicitis admitted to Hangzhou Hospital of Zhejiang Medical Hospital Health Care Group were selected in this study.All patients were diagnosed by abdominal ultrasound and performed surgical treatment.The clinical value of abdominal ultrasound in the diagnosis of acute appendicitis was analyzed.@*Results@#The diagnostic rate of acute simple appendicitis was 94%(33/35). The diagnostic rate of acute gangrene perforated appendicitis was 87%(7/8). The diagnostic rate of abscess classification around the appendix was 100%(5/5). The diagnosis of abdominal gray-scale ultrasound examination was consistent with the results of surgical pathological diagnosis, with an accuracy rate of 93%(56/60).@*Conclusion@#In the diagnosis of acute appendicitis, abdominal gray-scale ultrasound examination is a direct, simple, safe and accurate method, which is worthy of extensive promotion and application.

Diagnostic errors in surgical pathology / Erros diagnósticos em patologia cirúrgica

ABSTRACT Pathology must aim at a correct and complete diagnosis for the patient, timely, useful and understandable to the physician assistant. However, in daily practice, there are multiple possibilities of errors in the pathology laboratory, with several impacts on patient care and prognosis. In this review, we discuss the different concepts of error and diagnostic concordances in pathology, at which point in the diagnostic process the errors are more frequent, and propose solutions to minimize the chance of their occurrence.

RESUMO A patologia deve ter como meta um diagnóstico correto e completo para o paciente, em tempo hábil, de maneira útil e compreensível para o médico assistente. No entanto, na prática diária, são múltiplas as possibilidades de erros no laboratório de patologia, com diversos impactos na assistência e no prognóstico do paciente. Nesta revisão, serão abordados os diferentes conceitos de erros e concordância diagnóstica em patologia, em que momento do processo diagnóstico os erros são mais frequentes, bem como a proposta de soluções para minimizar a chance de sua ocorrência.

Hallazgos compatibles con material de osteosíntesis en 10.000 radiografías panorámicas: un estudio descriptivo en Bogotá, Colombia / Findings of osteosynthesis material in 10,000 panoramic x-rays: a descriptive study in Bogotá, Colombia

La radiografía panorámica ha adquirido un gran valor diagnóstico por su bajo costo y detección de hallazgos que no son detectables en la clínica. En cirugía maxilofacial son de utilidad en el seguimiento de procedimientos quirúrgicos mayores ya que permiten visualizar los materiales de osteosíntesis y determinar las patologías óseas con indicaciones quirúrgicas. Objetivo: determinar la prevalencia de material de osteosíntesis en radiografías panorámicas de adultos, buscando su asociación con trauma, anomalía dentofacial, patología quirúrgica y defecto óseo. Método: se valoraron 10.000 radiografías, clasificándolas por sexo, edad y diagnóstico presuntivo. Resultados: se encontraron 173 radiografías con hallazgos de fijación rígida en su mayoría mujeres, entre 21-30 años. Los hombres sufren más trauma mientras que la cirugía ortognática se hace más en mujeres. Conclusión: El material de osteosíntesis se asocia más a corrección de anomalías dentomaxilofaciales en mujeres jóvenes, mientras que la fijación interna rígida asociada a patología quirúrgica es de baja prevalencia...

Panoramic radiography has acquired great diagnostic value given its low cost and its capacity to detect findings that are non-detectable in clinical practice. In maxillofacial surgery, they are useful to monitor major surgical procedures as they enable professionals to detect osteosynthesis materials and thus determine bone diseases with surgical indications.Objective: to determine the prevalence of osteosynthesis material in panoramic radiographs of adult patients, looking for its association with bone defects, surgical pathology, dentofacial anomaly and trauma. Method: 10,000 x-rays were evaluated and classified according to sex, age and presumptive diagnosis. Results: there were 173 x-rays with findings of rigid fixation, mostly among women aged between 21 and 30. Men tend to suffer more from trauma, while orthognathic surgery is more prevalent among women. Conclusion: Osteosynthesis material is more often associated with the correction of dentomaxillofacial anomalies in young women, while the rigid internal fixation associated with surgical pathology has low prevalence...

Frequency of the morphological criteria of prostate adenocarcinoma in 387 consecutive prostate needle biopsies: emphasis on the location and number of nucleoli / Frequência de critérios morfológicos de adenocarcinoma da próstata em 387 biópsias de agulha da próstata consecutivas: com ênfase na localização e no número de nucléolos

ABSTRACT Introduction and objectives: We evaluated the sensitivity and specificity of morphological criteria for the diagnosis of prostate adenocarcinoma in consecutive, prostate needle biopsies specimens with emphasis on the location and number of nucleoli. Methods: The morphological features of 387 consecutive prostate needle biopsies specimens, in 2013, were systematically examined and stratified according to the final diagnosis of benign, suspicious and malignant lesions. We also tested how well each criterion predicted the final diagnosis after the immunohistochemical evaluation for expression of the basal cell markers (p63 and high molecular weight cytokeratin) and racemase. Results: A prominent nucleoli is the most common feature of carcinoma; however it is also relatively common in benign cases. The frequencies of prominent central nucleoli in malignant, suspicious and benign cases were 99%, 89% and 27%, respectively. Marginated nucleoli (85%, 60% and 7%), double nucleoli (86%, 53% and 10%), and multiple nucleoli (47%, 14% and 2%) were less common in benign cases, with significant difference among the groups. From the 36 cases initially diagnosed as suspicious, the presence of marginated nucleoli and mitoses were associated with the final diagnosis of malignancy. Prominent central nucleoli were more associated with cases which the final diagnosis after immunohistochemistry was benign. Conclusion: The location and number of nucleoli may be valuable morphological markers to identify suspicious lesions, since these features are more specific for malignancy than nucleolar prominence. The presence of prominent nucleoli commonly leads to the initial diagnosis of suspicious lesion that, subsequently, will be resulted in benignity confirmed by immunohistochemistry.

RESUMO Introdução e objetivos: Avaliamos a sensibilidade e a especificidade de critérios morfológicos para diagnóstico de adenocarcinoma da próstata em biópsias de agulha da próstata, consecutivas, com ênfase na localização e no número de nucléolos. Métodos: A morfologia de 387 biópsias de agulha consecutivas do ano de 2013 foi sistematicamente examinada e estratificada como diagnóstico de benigno, lesão suspeita ou maligno. Também testamos como cada critério previu o diagnóstico final após avaliação imuno-histoquímica para expressão de marcadores de células basais (p63 e citoqueratina de alto peso) e racemase. Resultados: Um nucléolo proeminente foi o achado mais comum do carcinoma, mas também foi relativamente comum em casos benignos. As frequências de um nucléolo proeminente central em lesões malignas, suspeitas e benignas foi de 99%, 89% e 27%, respectivamente. Nucléolo marginado (85%, 60% e 7%), nucléolos duplos (86%, 53% e 10%) e nucléolos múltiplos (47%, 14% e 2%) foram menos comuns em casos benignos, com diferenças significativas entre os grupos. Dos 36 casos com diagnóstico inicial de suspeito, a presença de nucléolo marginado e mitoses foi associada ao diagnóstico final de malignidade. Um nucléolo proeminente central foi mais associado a casos cujo diagnóstico final após imuno-histoquímica foi benigno. Conclusão: A localização e o número de nucléolos pode ser um marcador morfológico valioso para identificar lesões suspeitas, uma vez que esses achados são mais específicos para malignidade do que a proeminência nucleolar. A presença de nucléolo proeminente comumente leva ao diagnóstico inicial de lesão suspeita que, posteriormente, terá a conclusão de benignidade confirmada pela imuno-histoquímica.

Ductal carcinoma of the breast: morphological aspects according to the age / Carcinoma ductal da mama: aspectos morfológicos de acordo com a idade

ABSTRACTIntroduction:Breast cancer is the most common cancer in women worldwide, and its morphological characteristics, despite the current molecular classification, also provide important information about the pattern of this disease.Objective:To analyze the morphological characteristics of invasive ductal breast carcinoma among women older and younger than 50 years.Method:302 cases of invasive ductal carcinoma patients treated at the Division of Mastology of the Universidade Federal do Ceará, in the period 2005-2014, aged ≤ 50 years and older. The following morphological characteristics were analyzed: larger tumor diameter (TD), lymph node metastasis (MX), and histological grade (HG).Results:The mean age of patients was 55.6 years. The average tumor size was 3.4 cm, 40% of tumors have diameter ≤ 2 cm and 60% > 2 cm. As for the histological grade, 23.7% were grade 1, 32.1% grade 2, and 42% grade 3. Axillary metastasis were present in 66% of the cases and 34% did not. Women aged ≤ 50 years had fewer tumors grade 1 (p = 0.002), compared with grades 2 and 3. Women older than 50 years had more grade 3 tumors (p = 0.002), and more tumors larger than 2 cm diameter (p < 0.001). The presence of metastasis predominated in both age groups when analyzed separately (p < 0.001).Conclusion:Women older than 50 years had larger and more morphologically undifferentiated tumors. Women aged ≤ 50 years had less well-differentiated tumors. There were no differences in morphology between these two age groups when compared each other.

RESUMOIntrodução:O câncer de mama é o câncer que mais acomete mulheres no mundo, e suas características morfológicas, a despeito da atual classificação molecular, ainda fornecem informações importantes sobre o comportamento desta doença.Objetivo:Analisar as características morfológicas dos carcinomas ductais invasivos da mama em mulheres acima e abaixo de 50 anos de idade.Métodos:Trezentos e dois casos de carcinoma ductal de pacientes do serviço de Mastologia da Universidade Federal do Ceará (UFC), no período de 2005 a 2014, com idade ≤ 50 anos e acima de 50 anos. Foram analisadas as seguintes características morfológicas: maior diâmetro do tumor (DT), presença de metástase axilar (MX) e grau histológico (GH).Resultados:A idade média das pacientes foi de 55,6 anos; o tamanho médio dos tumores, de 3,4 cm. Quarenta por cento dos tumores possuíam diâmetro ≤ 2 cm e 60%, > 2 cm. Quanto ao grau histológico, 23,7% eram grau 1, 32,1%, grau 2 e 42%, grau 3. Sessenta e seis por cento dos casos apresentaram metástase axilar e 34% não. Mulheres com idade ≤ 50 anos apresentaram menos tumores grau 1 (p = 0,002) em relação aos graus 2 e 3. Mulheres acima de 50 anos apresentaram mais tumores grau 3 (p = 0,002) e mais tumores com mais de 2 cm de diâmetro (p < 0,001). A presença de metástase predominou nas duas faixas etárias quando analisadas isoladamente (p < 0,001).Conclusão:Mulheres acima de 50 anos apresentaram tumores maiores e de morfologia mais indiferenciada; mulheres com idade ≤ 50 anos, menos tumores bem diferenciados. Não houve diferença da morfologia entre as faixas etárias quando comparadas entre si.

Carcinoma de Merkel (carcinoma neuroendocrino) / Merkel cell carcinoma (neuroendocrine carcinoma)

Desde que el carcinoma de Merkel fue descrito por primera vez, hace poco más de cuatro décadas por Cyril Toker en el año de 1972; ha despertado el interés de los colegas médicos. Factores de esta patología como: su célula de origen, etiología, evolución y tratamiento al día de hoy se mantienen en discusión y se modifican con el paso del tiempo. El advenimiento de la microscopía electrónica y la inmunohistoquímica han colaborado en la definición etiológica de esta neoplasia y otros descubrimientos como el del poliomavirus de células de Merkel, han brindado información importante sobre la génesis de este proceso. El tratamiento del carcinoma de células de Merkel sigue sufriendo leves variaciones con el paso del tiempo y se mantiene en discusión a la fecha. Presentamos el caso de una paciente con un carcinoma de células de Merkel con revisión de la literatura actual.

Since Merkel carcinoma was first described more than four decades ago by Cyril Toker little in the year 1972; has attracted interest from medical colleagues. Factors of this disease as their cell of origin, etiology, course and treatment today remain under discussion and change over time. The advent of electron microscopy and immunohistochemistry have collaborated in the etiological definition of this neoplasm and other discoveries such as the Merkel cell polyomavirus, have provided important information on the genesis of this process. The treatment of Merkel cell carcinoma is still suffering slight variations over time and remains in discussion to date. We report a patient with Merkel cell carcinoma with review of the current literature.

Role of scrape cytopathology in early diagnosis of neoplastic lesions& its histopathological correlation.

Background: Scrape cytology is quick method to know difference between benign & malignant lesions hence aid in early diagnosis. This can in turn lead to quick management even intra operatively. This diagnostic discipline has arisen in parallel but much before contemporary histology. Aims & Objective: (1) To establish scrape cytology techniques as a routine procedure for diagnosis of surgical specimen; (2) To evaluate the diagnostic accuracy of scrape cytological techniques in the diagnosis; (3) To study the merits and pitfalls of scrape cytological techniques in the diagnosis; (4) Correlations of findings of scrape cytology with histopathological findings. Materials and Methods: This was a prospective study of 100 surgical specimens submitted in Department of Pathology, MGM Medical College, Indore. Smears obtained were stained with Papanicolaou Stain & studied. Results: Out of total 33 benign lesions, 31 (94%) were diagnosed correctly and 1 (3%) was false negative & 1 (3%) was not correlating well with histology. Out of total 67 malignant lesions 60 (89.6%) were diagnosed correctly, 2 (3.0%) were false negative and 5 (7.4%) did not correlated with histology. Conclusion: Scrape cytology is rapid technique for diagnosis & can be utilized in place of frozen section as well as adjuvant to histological diagnosis.

Dimensão da margem cirúrgica nas ressecções de metástase hepática de câncer colorretal: impacto na recidiva e sobrevida / Surgical margin size in hepatic resections for colorectal metastasis: impact on recurrence and survival

RACIONAL: Aproximadamente 50% dos pacientes com tumor colorretal apresentam metástase hepática sendo a hepatectomia o procedimento terapêutico de escolha. Discutem-se diversos fatores prognósticos; entre eles, a margem cirúrgica é fator sempre recorrente, pois não existe consenso da distância mínima necessária entre o nódulo metastático e a linha de secção hepática. OBJETIVOS: Avaliar as margens cirúrgicas nas ressecções de metástases hepáticas de câncer colorretal e sua correlação com recidiva local e sobrevida. MÉTODOS: Estudo retrospectivo, baseado na revisão dos prontuários de 91 pacientes submetidos à ressecção de metástases hepáticas de neoplasia colorretal. Foi realizada revisão histopatológica de todos os casos com aferição da menor margem cirúrgica e observar o resultado tardio em relação à recidiva e sobrevida. RESULTADOS: Não houve diferença estatística nas taxas de recidiva e no tempo de sobrevivência global entre os pacientes com margens livres ou acometidas (R0vsR1), assim como não houve diferença entre as margens subcentimétricas e as maiores de 1 cm. A sobrevida livre de doença dos pacientes com margens microscopicamente acometidas foi significativamente menor do que dos com margens livres. A análise uni e multivariada não identificou a margem cirúrgica (R1, exígua ou menor que 1 cm) como fator de risco para recidiva. CONCLUSÕES: As ressecções de metástases hepáticas com margens livres de doença, independentemente das dimensões da margem, não influenciou na recidiva tumoral (intra ou extra-hepática) ou na sobrevida dos pacientes.

BACKGROUND: Approximately 50% of the patients with a colorectal tumor develop liver metastasis, for which hepatectomy is the standard care. Several prognostic factors have been discussed, among which is the surgical margin. This is a recurring issue, since no consensus exists as to the minimum required distance between the metastatic nodule and the liver transection line. AIM: To evaluate the surgical margins in liver resections for colorectal metastases and their correlation with local recurrence and survival. METHODS: A retrospective study based on the review of the medical records of 91 patients who underwent resection of liver metastases of colorectal cancer. A histopathological review was performed of all the cases; the smallest surgical margin was verified, and the late outcome of recurrence and survival was evaluated. RESULTS: No statistical difference was found in recurrence rates and overall survival between the patients with negative or positive margins (R0 versus R1); likewise, there was no statistical difference between subcentimeter margins and those greater than 1 cm. The disease-free survival of the patients with microscopically positive margins was significantly worse than that of the patients with negative margins. The uni- and multivariate analyses did not establish the surgical margin (R1, narrow or less than 1 cm) as a risk factor for recurrence. CONCLUSION: The resections of liver metastases with negative margins, independently of the margin width, had no impact on tumor recurrence (intra- or extrahepatic) or patient survival.

Hiperplasia tonsilar e tonsilite de repeticao: correlacao clinico-histopatologica / Tonsillar hyperplasia and recurrent tonsillitis: clinical-histological correlation

Hipertrofia e tonsilites de repetição são indicações comuns de tonsilectomia. Entretanto, os relatórios anátomo-patológicos são semelhantes, independentemente da clínica. OBJETIVO: Buscar alterações histopatológicas que diferenciem tonsilas palatinas operadas por hipertrofia de tonsilites de repetição. MÉTODO: Estudo transversal prospectivo descritivo com 46 crianças divididas em grupos I - 22 com hipertrofia e II - 24 com tonsilites de repetição, no período de 2010 a 2012, em hospital público. Avaliamos características clínicas e histopatológicas (folículos linfáticos, centros germinativos, fibrose, necrose, reticulação, infiltração por plasmócitos e neutrófilos). RESULTADOS: A idade dos pacientes variou entre 2 e 11 anos (5,17 ± 2,28). No grupo I, metade apresentou a última infecção há sete meses ou mais e todas grau de obstrução maior que 3 (≥ 50%). No grupo II, todos apresentaram a última infecção há menos de sete meses e a maioria grau de obstrução menor que 4 (≤ 75%). Houve diferença estatisticamente significativa no grau de obstrução (p = 0,0021) e número de centros germinativos (p = 0,002), maiores no grupo I. CONCLUSÃO: Este estudo sugere que o número de centros germinativos é o único critério histopatológico que pode ser utilizado para diferenciar os dois grupos. .

Hypertrophy and recurrent tonsillitis are common indications of tonsillectomy. However, the pathological reports are similar, regardless of clinical aspects. OBJECTIVE: Search for histopathological changes that differentiate palatine tonsils operated because of hypertrophy vis-à-vis those operated because of recurrent tonsillitis. METHOD: A prospective cross-sectional descriptive study involving 46 children divided into group I - 22 with hypertrophy; and group II - 24 with recurrent tonsillitis, in the period between 2010 and 2012, in a public hospital. We evaluated clinical and histopathological features (lymph follicles, germinal centers, fibrosis, necrosis, reticulation, infiltration by plasma cells and neutrophils). RESULTS: The patients' ages ranged between 2 and 11 years (5.17 ± 2.28). In group I, half of the patients had had the latest infection at seven months or more, and all with obstruction degree greater than 3 (> 50%). In group II, all had had the latest infection at less than seven months, and most with obstruction degree below 4 (< 75%). There was a statistically significant difference in the degree of obstruction (p = 0.0021) and number of germinal centers (p = 0.002) was higher in group I. CONCLUSION: This study suggests that the number of germinal centers is the only histopathological criterion that can be used to differentiate the two groups. .

"Surgical pathology: foundation of ""soft power"" in clinical surgery" / 中华肝胆外科杂志

Surgical pathology is an important ele ment of surgery,as well as the foundation and prop of surgi cal practice.The technical surgeons,who are void of basis knowledge of pathology,may improve their own techniques,but could not enhance the ability of clinical judgement.To eliminate these surgeons' ignorance is better than to improve their surgical techniques.

Gallbladder carcinoma: clinicopathological study of 24 cases / Carcinoma da vesícula biliar: estudo clinicopatológico de 24 casos

INTRODUCTION: Despite preoperative procedures, gallbladder carcinoma is commonly detected intraoperatively or on anatomopathologic examination after cholecystectomy. OBJECTIVE: To study the clinical-morphological aspects and evolution of patients with primary gallbladder carcinoma. METHODS: We reviewed medical records and pathologic material of all patients diagnosed with gallbladder carcinoma at our institution from 1997 to 2008. RESULTS: Twenty-four cases with primary carcinoma were studied, predominantly among female patients, mean age of 61.1 years. The most common clinical symptom was upper right hypochondriac pain. Five patients were diagnosed in early stages and 19 were in advanced stages. Only seven patients were diagnosed with carcinoma preoperatively, all of them in advanced stages. As to macroscopic examination, three early cases were identified as type IIa, two type IIb and 13 advanced cases were flat and infiltrating. Histologically, there were 23 adenocarcinomas and one adenosquamous carcinoma. Simple cholecystectomy was performed in seven patients, extended cholecystectomy in four patients, cholecystectomy and omentectomy in one patient, and tumor biopsy in only two patients. The median survival rate for patients in early stages was 59 months, and for pT2, pT3 and pT4 stages were 22 months, nine months and three days, respectively. CONCLUSION: There was a prevalence of advanced neoplasias diagnosed through anatomopathological examinations with poor prognosis. Furthermore, earlier detection contributed to higher survival rate. Investigation of anatomopathologic features, specially the macroscopic patterns of gallbladder carcinoma, is essential to improve diagnostic accuracy and to provide a definite treatment.

INTRODUÇÃO: Não obstante estudos pré-operatórios, o câncer da vesícula biliar é frequentemente detectado durante a cirurgia ou no exame anatomopatológico após colecistectomias. OBJETIVO: Avaliar as principais apresentações clinicomorfológicas e a evolução de pacientes com carcinoma da vesícula biliar. MÉTODOS: Foram revisados prontuários médicos e material anatomopatológico de todos os pacientes com carcinoma de vesícula biliar diagnosticados em nosso hospital de 1997 a 2008. RESULTADOS: Foram encontrados 24 carcinomas primários, com predomínio em mulheres, média de idade de 61,1 anos. A apresentação clínica mais frequente foi de dor em hipocôndrio direito. Cinco pacientes foram diagnosticados em estádios precoces e 19, em estádios avançados. O diagnóstico pré-operatório de câncer foi realizado em sete pacientes, todos em estádios avançados. Ao exame macroscópico, três cânceres precoces eram tipo IIa e dois, IIb. Treze casos avançados eram aplanados e infiltrantes, 23 eram adenocarcinomas e um era adenoescamoso. Colecistectomia simples foi realizada em sete pacientes, colecistectomia associada à ressecção do leito hepático em quatro, colecistectomia e omentectomia em um e apenas biópsia do tumor em dois pacientes. A média de sobrevida para os pacientes em estádio precoce foi de 59 meses e para os pT2, pT3 e pT4 foram 22 meses, nove meses e três dias, respectivamente. CONCLUSÃO: Salienta-se a prevalência de neoplasias avançadas, com prognóstico ruim, diagnosticadas ao exame anatomopatológico. Detecção mais precoce contribuiu para melhor sobrevida. Conhecimento das características anatomopatológicas, especialmente dos padrões macroscópicos do câncer da vesícula biliar, é essencial para melhorar a acuidade diagnóstica e permitir o tratamento radical definitivo.