Korean J Urol.  2006 Aug;47(8):903-905. 10.4111/kju.2006.47.8.903.

Ectopic Prostate Tissue in the Posterior Wall of the Bladder

• Kim HJ
• Lee SR
• Choi J
• Kim IG
• Lee JO
• Han BH

• KMID: 2294122
• DOI: http://doi.org/10.4111/kju.2006.47.8.903

Abstract

We herein report a case of ectopic prostate tissue involving the posterior wall of the bladder. A 33-year-old man was referred to our hospital because of a bladder tumor that was incidentally discovered on abdominal ultrasonography (US). US and computed tomography (CT) showed a 1.5x2.0cm sized tumor in the posterior wall of the bladder. Cystoscopic examination revealed a sessile tumor, covered with normal bladder mucosa in the posterior wall of the bladder. Transurethral resection of the bladder tumor was carried out and the origin of the tissue was confirmed by immunohistochemical staining for prostate specific antigen. The histopathological examination revealed benign prostate tissue that was situated ectopically.

Keyword

Ectopic prostate tissue; Bladder

MeSH Terms

Adult
Humans
Mucous Membrane
Prostate*
Prostate-Specific Antigen
Ultrasonography
Urinary Bladder Neoplasms
Urinary Bladder*
Prostate-Specific Antigen

Figure

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  Fig. 1 The abdominal computed tomography (CT) scan reveals a tumor in the posterior wall of the bladder.

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  Fig. 2 Microscopic findings. (A) Section showing a few benign prostatic glands in the subepithelial connective tissue (H&E, ×100). (B) Prostate specific antigen (PSA) is expressed along the luminal border of the prostatic epithelial cells (immunostaining for PSA, ×200).

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