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Vol. 29. Issue 8.
Pages 735-738 (January 2005)
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Vol. 29. Issue 8.
Pages 735-738 (January 2005)
Neoplasia intraepitelial prostática aislada y positividad para adenocarcinoma en la rebiopsia. Revisión de nuestra serie
Isolated prostatic intraepithelial neoplasia and positive prostate cancer results at repeat biopsy. our series review
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M. Arzoz fábregasa,1, J. Areal calamaa, L. Ibarz servioa, J.L. Gago ramosa, R. Boix orria, J. Mª saladié roiga
a Servicio de Urología. Hospital Germans Trias i Pujol. Badalona. Barcelona
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Resumen
Objetivo

Revisar la incidencia de neoplasia intraepitelial prostática ( PIN ) aislada, así como la positividad para adenocarcinoma prostático de estas lesiones en la rebiopsia en nuestra serie de biopsias transrectales, comparando los resultados con la bibliografía actual

Material y método

Hemos analizado las 2.475 biopsias prostáticas transrectales ecodirigidas realizadas en nuestro Servicio desde enero de 1992 hasta junio del 2004 en búsqueda de neoplasia intraepitelial prostática y en concreto de PIN de alto grado (PINAG) aislado, revisando las rebiopsias realizadas a estos pacientes y la probabilidad de detectar en ellas adenocarcinoma

Resultados

De un total de 31 biopsias en las que se halló el diagnóstico de PIN, 13 de ellas corresponde a PIN de alto grado aislado, lo que supone una incidencia de 0,52% del total de las biopsias realizadas en el Servicio. Se han rebiopsiado 7 de estos 13 casos en un período de 3 meses a 2 años tras la primera biopsia, hallando en 3 adenocarcinoma; lo que supone que el 43 % de los PINAG aislados rebiopsiados en la serie mostraron adenocarcinoma. La edad media de los pacientes estudiados fue de 67 años (rango 53-88). El PSA medio de los pacientes estudiados fue de 9,8 ng/ml. El Gleason de las biopsias con carcinoma estuvo siempre entre 3 y 7. En nuestra muestra, la edad y los niveles de PSA no guardaban relación con la positividad a adenocarcinoma en las rebiopsias

Conclusiones

A pesar de una cifra inferior de PIN de alto grado en nuestra serie, la positividad para carcinoma en la rebiopsia (43%) es semejante a la descrita en la literatura, por lo que son aconsejables los controles rigurosos y las rebiopsias a estos pacientes

Palabras clave:
Neoplasia intraepitelial prostática
Biopsia prostática
Cáncer de próstata
Abstract
Objetive

To review the incidence of isolated prostatic intraepithelial neoplasia (PIN) as well as the positive prostate cancer results in repeat biopsy in our series of transrectal biopsy of the prostate. We compare these results with the actual literature

Materials and methods

We review the 2.475 transrectal ultrasound guided biopsies of the prostate made in our department from January 1992 to June 2004 looking for intraepithelial neoplasia and looking in particular for isolated High-grade PIN ( HGPIN). We review repeat biopsies made at this patients and the likelihood of detecting prostate cancer in them.

Results

The diagnosis of PIN was found in 31 biopsies, 13 of them were isolated HGPIN what means a 0,52% incidence of the total biopsies performed in our department. We performed 7 repeat biopsies of the 13 cases in a period from 3 months to 2 years after the first biopsy, and we found 3 cases of prostate cancer what means that 43% of isolated HGPIN with repeated biopsy showed prostate cancer. The mean age of the patients studied was 67 years (range 53-88). The median PSA value of the studied cases was 9,8 ng /ml. The Gleason score of the positive biopsies was always between 3 and 7. In our series, age and PSA levels did not have correlation with the positive results for prostate cancer in repeated biopsies.

Conclusion

In spite of a lower number of HGPIN cases in our series, the positive for prostate cancer in repeated biopsy ( 43%) is similar to the incidence reported in literature so it is advisable rigorous controls and repeated biopsies for these patients

Key words:
Prostatic Intraepithelial Neoplasia
Prostate biopsy
Prostate cancer

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