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Rev. chil. urol ; 74(2): 98-101, 2009. ilus
Article in Spanish | LILACS | ID: lil-562738

ABSTRACT

Introducción: El 2-5 por ciento de biopsias prostáticas transrectales (BpTr) contienen proliferaciones de pequeñosacinos sospechosos de cáncer, pero que no cumplen criterios diagnósticos de malignidad, denominados ASAP (“Atypical Small Acinar Proliferation”). Se ha identificado adenocarcinoma en 34- 60 por ciento de biopsias posteriores, sugiriéndose repetir BpTr en presencia de ASAP. Materiales y métodos: revisamos la prevalencia de ASAP en las BpTr realizadas entre enero de 2000y diciembre de 2005 y la asociación con cáncer prostático al realizar seguimiento con una nueva BpTr.Resultados: Se realizaron 2389 BpTr, identificándose ASAP en el 2,6 por ciento de estas. Se diagnosticóadenocarcinoma prostático en 39,5 por ciento de los pacientes con seguimiento histológico.Conclusiones: ASAP posee alta asociación con cáncer prostático en pacientes sometidos a seguimientocon BpTr, alertando la necesidad de un nuevo control histológico.


Introduction: About 2 percent to 5 percent of prostate needle biopsies contain atypical small acinar proliferation (ASAP) that is suspicious of cancer but is not clearly malignant. Prostate cancer has been identified in34-60 percent of biopsies on follow up. This finding suggests repeat prostate needle biopsy in the presence of ASAP.Material and methods: We reviewed ASAP prevalence on prostate needle biopsies between January 2000 and December 2005 and the relation with adenocarcinoma on histological follow up.Results: A total of 2389 prostate needle biopsies were performed, ASAP was founded in 2.6 percent. Prostaticadenocacinoma was founded in 39.5 percent patients with histological follow up.Conclusions: The ASAP finding has high association with prostate adenocarcinoma in patients with histological follow up warning to perform an histological control.


Subject(s)
Humans , Male , Adenocarcinoma/pathology , Biopsy, Needle/methods , Precancerous Conditions/pathology , Prostatic Neoplasms/pathology , Adenocarcinoma/epidemiology , Follow-Up Studies , Precancerous Conditions/epidemiology , Prostatic Neoplasms/epidemiology , Prevalence , Cell Proliferation , Prostate/pathology , Retreatment
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