Intraductal Carcinoma of the Prostate without High-Grade Invasive Adenocarcinoma: Report of Two Cases and Review of the Literature
Arch. esp. urol. (Ed. impr.)
; 75(9): 738-745, 28 nov. 2022. ilus
Article
en En
| IBECS
| ID: ibc-212766
Biblioteca responsable:
ES1.1
Ubicación: ES15.1 - BNCS
ABSTRACT
Objectives: Intraductal carcinoma of the prostate (IDC-P) is usually associated with high grade, aggresive acinar adenocarcinomas. IDC-P is supposed to result from the spread of the adenocarcinoma along the prostatic ducts. IDC-P rarely occurs without invasive carcinoma or with a coexistent low grade adenocarcinoma. Material and Methods: We report two patients, 66 and 75 year-old, who presented IDC-P and low-grade acinar adenocarcinoma foci in their radical prostatectomy surgical specimens. Results: Acinar adenocarcinomas were grade group 1, PTEN+, pT2. In the first case, the invasive adenocarcinoma was adjacent but nor intermingled with the IDC-P, and a discordance in the immunophenotype between them was outstanding (positivity for ERG in the acinar carcinoma being negative in the IDC-P). In the second case, the foci of adenocarcinoma were distant from the IDC-P. The first patient had not biochemical recurrence after a 34 month follow-up period. Conclusions: This kind of cases supports the existence of an infrequent subtype of IDC-P that could be considered as an in situ neoplasia (AU)
RESUMEN
Objetivos: El carcinoma intraductal de la próstata(CIDP) aparece generalmente asociado a adenocarcinomasacinares agresivos, de alto grado. En general se cree que elCIDP representa una forma de diseminación deladenocarcinoma a los ductos prostáticos. En ocasiones elCIDP aparece, sin embargo, sin tumor infiltrante o conadenocarcinomas de bajo grado.Material y Métodos: Presentamos dos pacientes de66 y 75 años, que en las piezas de prostatectomía radicalpresentaron CIDP y focos de adenocarcinoma acinar degrupo de grado bajo.Resultados: Los adenocarcinomas acinares eran degrupo de grado 1, PTEN+, pT2. En el primer caso, eladenocarcinoma se localizaba adyacente, pero noentremezclado, con el CIDP, y destacaba la discordanciaen el inmunofenotipo entre el adenocarcinoma, ERG+, y elCIDP, que era ERG-. En el segundo, los focos de adenocarcinoma se localizaban a distancia del CIDP. Elprimer paciente no ha presentado recidiva bioquímica tras34 meses de seguimiento.Conclusiones: Las características de los casos quepresentamos apoyan la existencia de un subtipoinfrecuente de CIDP que se podría considerar como unaneoplasia in situ. (AU)
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Colección:
06-national
/
ES
Base de datos:
IBECS
Asunto principal:
Neoplasias de la Próstata
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Adenocarcinoma
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Carcinoma Intraductal no Infiltrante
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Neoplasia Intraepitelial Prostática
Límite:
Aged
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Humans
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Male
Idioma:
En
Revista:
Arch. esp. urol. (Ed. impr.)
Año:
2022
Tipo del documento:
Article