World J Mens Health.  2013 Aug;31(2):176-178.

Ectopic Prostate Tissue at the Bladder Dome Presenting as a Bladder Tumor

• Kim JH
• Jeen YM
• Song YS

Abstract

The presence of ectopic prostate tissue in the bladder is common, but the involvement of the bladder dome has rarely been reported. This case report describes a 72-year-old man who presented with gross painless hematuria. Cystoscopy revealed a smooth sessile mass at the dome region of the bladder. A complete transurethral resection of the mass was performed. Histopathological examination of the mass revealed the presence of benign ectopic prostatic tissue.

Keyword

Urinary bladder; Choristoma; Prostate

MeSH Terms

Aged
Choristoma
Cystoscopy
Hematuria
Humans
Prostate
Urinary Bladder
Urinary Bladder Neoplasms

Figure

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  Fig. 1 Cystoscopy results revealed a smooth sessile mass at the bladder dome.

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  Fig. 2 (A) Prostate glands in the subepithelial layer of the urinary bladder. The bladder mucosa seems to be intact (arrows) (H&E, ×40). (B) The prostate glands are composed of a distinct luminal epithelial cell layer and a basal cell layer (H&E, ×200).

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  Fig. 3 (A) Prostate glands showing irregular dilated lumens with flattened epithelial cells (H&E, ×200). (B) Immunopositive staining of most prostate glands for prostate-specific antigen (H&E, ×200).

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