title: Basaloid carcinoma of the prostate gland. An unusual finding.
abstract: OBJECTIVE
  Carcinoma with basaloid features, known as basaloid carcinoma of prostate, is an extremely rare tumor. We report the clinical, histological and immunohistochemical findings in a case of prostatic basaloid carcinoma.
  
  
  RESULTS
  A 68-year old man consulted with a two-year history of increasing urinary outflow obstruction that developed into acute urinary retention. A routine suprapubic prostatectomy was carried out, following which normal voiding was achieved. Microscopically, the neoplasm showed different histological aspects; some areas were typical of basal cell hyperplasia, intermixed with other in which there was evidence of basaloid carcinoma. Immunohistochemical staining of the basaloid carcinoma revealed cytokeratin 34betaE12 immunoreactivity without expression of prostatic specific antigen and prostatic acid phosphatase.
  
  
  CONCLUSIONS
  This case is a very unusual basaloid carcinoma and may indicate that there is a spectrum in prostate basal cell proliferation.
authors.affiliation: Servicio de Patología, Hospital Vargas de Caracas, Caracas, Venezuela. parada@cantv.net
authors.forename: David D
authors.initials: DD
authors.lastname: Parada
authors.forename: Carmen A
authors.initials: CA
authors.lastname: López
authors.forename: Otto
authors.initials: O
authors.lastname: Moreira
mesh_terms: D000368:Aged; D002295:Carcinoma, Transitional Cell / Q000473:pathology* / Q000601:surgery; D006801:Humans; D008297:Male; D011471:Prostatic Neoplasms / Q000473:pathology* / Q000601:surgery