Kato H, Kobayashi S, Islam AM, Nishizawa O. Female para-urethral adenocarcinoma: Histological and immunohistochemical study.
Int J Urol 2005;
12:117-9. [PMID:
15661069 DOI:
10.1111/j.1442-2042.2004.00991.x]
[Citation(s) in RCA: 28] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND
Female urethral cancer with a diverticular form is assumed to originate from the para-urethral duct, which is embryologically homologous to the male prostate gland. The purpose of the present paper was to investigate the female para-urethral adenocarcinomas histologically and immunohistochemically.
METHODS
Surgical specimens obtained from six female patients with para-urethral adenocarcinomas were examined histologically, and an immunohistochemical study using antibodies against carcinoembryonic antigen (CEA), prostate specific antigen (PSA), and chromogranin A was performed.
RESULTS
On histologic examination, the female para-urethral cancers were divided into five cases of mucin-producing-type adenocarcinoma and one case of clear cell-type adenocarcinoma. All five mucin-producing-type adenocarcinomas were positive with anti-CEA, and two of them showed neuroendicrine differentiation. One of them showed a focally positive area with anti-PSA. The clear cell-type adenocarcinoma had no positive reactions to these antibodies.
CONCLUSIONS
On the basis of histologic structure, positive CEA staining, and the presence of focal neuroendocrine differentiation, mucin-producing-type adenocarcinomas may arise from the proximal part of the para-urethral duct.
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