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1.
Clinics ; 77: 100022, 2022. tab, graf
Article in English | LILACS-Express | LILACS | ID: biblio-1375195

ABSTRACT

Abstract Objective To investigate Incidental Thyroid Carcinoma (ITC) by comparing the results of Fine Needle Aspiration Biopsy (FNAB) cytology and the postoperative pathological findings. Methods Data of 1479 patients who underwent total thyroidectomy were retrieved. Three hundred eighty-six patients were excluded due to insufficient data. Each surgical specimen studied received two histopathological diagnoses: the local diagnosis ‒ for the same area in which the FNAB was performed; and the final diagnosis, which includes a study of the entire surgical specimen. Results A thousand and ninety-three patients were investigated. FNAB result was malignant in 187 patients, benign in 204, suspicious or indeterminate in 668 cases, and inconclusive in 34 cases. The prevalence of ITC was 15.1%. Most of the ITC in this series was less than 0.5 cm. The incidence of ITC was higher in Bethesda III (17.5% ITC) and IV (19% ITC) than in Bethesda II cases (1.5% false negatives and 9% ITC). Conclusion Although the incidence of false-negative results in Bethesda II nodules is only 1.5%, 9% of these patients had ITC in the thyroid parenchyma outside the nodule that underwent preoperative FNAB. The incidence of ITC in the same scenario was even higher in Bethesda III (17.5%) and Bethesda IV cases (19%). Ultrasonography-guided FNAB is an excellent method for the assessment of thyroid nodules. However, biopsy sites should be carefully selected. Despite the high incidence of incidentalomas, total thyroidectomy should not always be the treatment of choice due to its rare but potentially serious complications. The findings of the present study can assist future clinical decisions towards active surveillance strategies for the management of papillary thyroid carcinoma.

2.
Clinics ; 73: e370, 2018. tab, graf
Article in English | LILACS | ID: biblio-952815

ABSTRACT

OBJECTIVES: Most thyroid diseases are nodular and have been investigated using ultrasound-guided fine needle aspiration biopsy (FNAB), the reports of which are standardized by the Bethesda System. Bethesda category III represents a heterogeneous group in terms of lesion characteristics and the malignancy rates reported in the literature. The objective of the present study was to evaluate the differences in the malignancy rates among Bethesda III subcategories. METHODS: Data from 1,479 patients who had thyroid surgery were reviewed. In total, 1,093 patients (89.6% female, mean age 52.7 (13-89) years) were included, and 386 patients were excluded. FNAB results (based on Bethesda Class) and histopathological results (benign or malignant) for coincident areas were collected. Bethesda III patients were subcategorized according to cytopathological characteristics (FLUS: follicular lesion of undetermined significance, Bethesda IIIA; AUS: atypia of undetermined significance, Bethesda IIIB). Data were correlated to obtain the malignancy rates for each Bethesda category and the newly defined subcategory. RESULTS: FNAB results for these patients were as follows: Bethesda I: 3.1%; Bethesda II: 18.6%; Bethesda III: 35.0%; Bethesda IV: 22.1%; Bethesda V: 4.1%; and Bethesda VI: 17.1%. The malignancy rates for Bethesda Class IIIB were significantly higher than those for Bethesda Class IIIA (p<0.001) and Bethesda Class IV (p<0.001). Bethesda Class IIIA showed significantly lower malignancy rates than Bethesda Class III overall (p<0.001) CONCLUSIONS: Improvements of the Bethesda System should consider this subcategorization to better reflect different malignancy rates, which may have a significant impact on the decision-making process.


Subject(s)
Humans , Male , Female , Adolescent , Adult , Middle Aged , Aged , Aged, 80 and over , Young Adult , Thyroid Gland/pathology , Thyroid Neoplasms/diagnostic imaging , Thyroid Nodule/diagnostic imaging , Thyroid Gland/diagnostic imaging , Thyroid Neoplasms/classification , Thyroid Neoplasms/pathology , Retrospective Studies , Ultrasonography , Thyroid Nodule/classification , Thyroid Nodule/pathology , Risk Assessment , Biopsy, Fine-Needle , Diagnosis, Differential , Image-Guided Biopsy
3.
Clinics ; 65(4): 363-367, 2010. tab
Article in English | LILACS | ID: lil-546310

ABSTRACT

INTRODUCTION: Actinic cheilitis (AC) is considered to be a pre-malignant lesion or an incipient and superficial form of lip squamous cell carcinoma. It is commonly found in individuals whose occupational activities are related to chronic sun exposure and the definitive diagnosis is performed with biopsy. Althoug Exfoliative cytology has been used as a screening procedure to evaluate cancer of the oral cavity no studies have proposed the use of exfoliative cytologic analysis to evaluate and diagnose AC. OBJECTIVE: The purpose of this study was to evaluate lower lip lesions on fishermen related to chronic solar exposure using clinical, cytologic and histopathologic analyses. PATIENTS AND METHODS: Smears taken from the vermilion of the lower lips of 125 fishermen and 30 control individuals were subjected to cytologic analysis. RESULTS: The harvested cells were sufficient for cytologic analysis in 83.2 percent of the samples. Sixteen fishermen exhibited prominent lower lip lesions that justified biopsy and histological studies. In total, 4 specimens were malignant (3.2 percent), and 12 displayed epithelial dysplasia, demonstrating that the prevalence of epithelial dysplasia and malignant lesions was high among the fishermen population. These conditions were strongly associated with infiltration and blurring of the vermilion margin of the lower lip. CONCLUSION: The cytologic analysis was not useful for detecting epithelial dysplasia or malignant alterations.


Subject(s)
Adult , Female , Humans , Male , Middle Aged , Carcinoma, Squamous Cell/pathology , Cheilitis/pathology , Lip Neoplasms/pathology , Lip/pathology , Precancerous Conditions/pathology , Biopsy , Brazil , Chi-Square Distribution , Carcinoma, Squamous Cell/etiology , Cheilitis/etiology , Lip Neoplasms/etiology , Occupational Exposure/adverse effects , Precancerous Conditions/etiology , Statistics, Nonparametric , Sunlight/adverse effects
4.
Rev. Col. Bras. Cir ; 26(1): 21-5, jan.-fev. 1999. tab
Article in Portuguese | LILACS | ID: lil-261067

ABSTRACT

Foram estudados, retrospectivamente, os prontuários de 120 pacientes com câncer localizado da próstata nos estádios clínicos T1, T2 e T3a e que foram submetidos a linfadenectomia ilíaca e a cirurgia radical da próstata. Todos haviam sido graduados pela escala de Gleason através de biópsias da próstata guiadas pela ultra-sonografia transretal. Correlacionamos a graduação histológica destas biópsias da próstata com a graduação final obtida no exame da peça cirúrgica correspondente e obtivemos exata concordância em 39 pacientes (32,50 por cento). Ao considerarmos a concordância de ñ 1 unidade, observamos concordância de resultado em 81 pacientes (67,50 por cento). A subgraduação histológica das biópsias prostáticas foi encontrada em 75 pacientes (62,50 por cento) dos casos


Subject(s)
Biopsy , Prostatic Neoplasms/surgery , Neoplasm Staging
5.
Rev. bras. cir. cabeça pescoço ; 17(1): 58-68, 1993. tab, ilus
Article in Portuguese | LILACS, BBO | ID: lil-132890

ABSTRACT

Análise retrospectiva de 58 prontuários de portadores de carcinoma espinocelular do lábio inferior, atendidos no período de janeiro de 1980 a dezembro de 1989, no Hospital das Clínicas da Faculdade de Medicina da Universidade de Säo Paulo. Além dos dados demográficos, foram considerados o uso de álcool, fumo e a exposiçäo solar, assim como o estado clínico na época da cirurgia, as características macroscópicas dos tumores, o tipo de tratamento instituído e as observaçöes do seguimento pós-operatório. Os espécimens cirúrgicos foram submetidos a minuciosa revisäo anátomo-patológica com análise do grau de diferenciaçäo histológica, espessura máxima tumoral, elastose solar, invasöes perineural, vascular e muscular, margens cirúrgicas, infiltrado inflamatório peritumoral e acometimento glanglionar, com ou sem rotura capsular. A análise da sobrevida global em 5 anos demonstrou valor prognóstico significativo para as seguintes variáveis: espessura tumoral, tamanho da neoplasia (T) e acometimento ganglionar


Subject(s)
Humans , Carcinoma, Squamous Cell/diagnosis , Lip , Mouth Diseases
6.
Rev. Col. Bras. Cir ; 19(5): 204-8, set.-out. 1992. ilus
Article in Portuguese | LILACS | ID: lil-116524

ABSTRACT

O revistimento e reconstrucao em cirurgia oncologica de cabeca e pescoco e uma das preocupacoes dos cirurgioes que fazem esta especialidade. A dura-mater homologa conservada em glicerina e um dos recursos aventados para esta finalidade. Os AA realizaram implante deste material como substituto de mucosa no palato-duro de caes. Os mesmos foram sacrificados em grupos de tres no 2.,4.,6.,10.,15. dias de pos-operatorio. As pecas retiradas foram analisadas a luz de microscopia optica. Verificando-se que este material nao se incorpora ao hospedeiro. Ele foi destruido por processo inflamatorio agudo que iniciou-se no 2. dia pos-operatorio e terminou no 10. dia, com dificil identificacao do mesmo local do implante.


Subject(s)
Animals , Dogs , Dura Mater/surgery , Palate/surgery , Prostheses and Implants
7.
Rev. Hosp. Clin. Fac. Med. Univ. Säo Paulo ; 44(2): 87-90, mar.-abr. 1989.
Article in Portuguese | LILACS | ID: lil-74514

ABSTRACT

O desenvolimento de leucemias agudas, principalmente a leucemia mielóide aguda constitui-se em uma complicaçäo grave em pacientes tratados com rádio e/ou quimioterapia para doença de Hodgkin e tem aumentado acentuadamente nos ultímos 15 anos. Säo descritos dois casos de leucemia mielóide aguda após rádio e quimioterapia para doença de Hodgkin que ocorreram em uma populaçäo de 87 pacientes tratados. Foram realizadas autópsias completas em ambos. Os pacientes tinham idade inferior a 30 anos, receberam terapêutica combinada por um período prolongado (mais de 12 meses) com intervalo entre o diagnóstico da doença de Hodgkin e o aparecimento da leucemia mielóide aguda maior que 44 meses e sobrevida menor que 12 meses. Näo se observou doença de Hodgkin residual nos dois casos


Subject(s)
Child , Adolescent , Humans , Male , Antineoplastic Combined Chemotherapy Protocols/adverse effects , Hodgkin Disease/therapy , Leukemia, Myeloid, Acute/etiology
8.
Rev. Hosp. Clin. Fac. Med. Univ. Säo Paulo ; 44(1): 29-32, jan.-fev. 1989. ilus
Article in Portuguese | LILACS | ID: lil-72697

ABSTRACT

Os autores descrevem um caso de carcinoma epidermóde metastático em linfonodo cervical. Devido a presença de intensa reaçäo granulomatosa associada e a similaridade das células neoplásticas com as células epitelóides houve dificuldade diagnósticoa com base somente na análise histológica e citológica (biopsia aspirativa por agulha fina). Estudo por imunoperoxidase e microscopia eletrônica definiram o diagnóstico. É discutida a importância da utilizaçäo de múltiplos métodos em patologia cirúrgica e a patogênese da reaçäo granulomatosa associada as neoplasias malignas


Subject(s)
Middle Aged , Humans , Male , Carcinoma, Squamous Cell/secondary , Granuloma/complications , Biopsy, Needle , Carcinoma, Squamous Cell/pathology , Lymph Nodes/pathology , Lymph Nodes/ultrastructure , Granuloma/pathology , Neck
9.
RBM rev. bras. med ; 45(6): 211-8, jun. 1988. ilus
Article in Portuguese | LILACS | ID: lil-57552

ABSTRACT

Punçäo aspirativa por agulha fina (PAAF) é um método extremamente simples, com o qual se obtém material para análise citológica de qualquer órgäo ou tecido do organismo, com o objetivo preponderante de diagnóstico rápido de numerosas patologias. Este trabalho visa a divulgaçäo do método que consideramos ser extremamente útil, näo só pela rapidez do diagnóstico, alta acuidade, realizaçäo geralmente em ambulatório e sem uso de anestesia, como também por economizar recursos devido ao pequeno custo e facilidade de execuçäo. Ele dá ao médico responsável por um paciente com "tumor" em qualquer localizaçäo informaçöes precisas e rápidas para sua conduta. Discutimos pormenorizadamente a execuçäo do método e, sucintamente, características particulares de órgäos palpáveis e näo palpáveis que säo geralmente alvo da PAAF


Subject(s)
Humans , Biopsy, Needle/methods , Cytological Techniques , Punctures
10.
Pediatria (Säo Paulo) ; 7(1): 41-4, mar. 1985. ilus
Article in Portuguese | LILACS | ID: lil-1725

ABSTRACT

Os autores relatam o achado anátomo-patológico de epiglotite aguda em uma criança que foi submetida à autópsia. Descrevem a incidência, diagnóstico, tratamento e comentam aspectos importante com relaçäo a esta entidade


Subject(s)
Infant , Humans , Male , Epiglottitis , Epiglottitis/diagnosis , Epiglottitis/microbiology , Epiglottitis/therapy
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