Supratrigonal Ectopic Prostate: Case Report and Review of the Literature

Abstract

A 76-year-old man with a 6-month history of dysuria and frequency had a sessile tumor at the bladder dome containing benign prostatic glandular tissue. The presence of benign prostatic polyps in the prostatic urethra and bladder neck is a common finding. Ectopic prostatic tissue elsewhere is rare, it has been described previously in a few cases in the trigonum and only once in the supratrigonal area. The origin of prostate glands in this unlikely location is not yet fully understood. Prostatic tissue at any ectopic location is benign, although local recurrence has been reported.

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

“…Ectopic prostate tissue in the bladder usually involves the midline in the form of the vestigial remains of embryonic prostatic elements 2. Only 4 cases of this lesion have been reported previously in the English medical literature 2-4. This report presents an unusual case of ectopic prostate tissue at the bladder dome confirmed with cystoscopy, and this report also reviews the relevant literature.…”

Ectopic prostatic tissue: histogenesis and histopathological characteristics

“…Ectopic prostatic tissue is a relatively uncommon or underreported entity that is most commonly encoun-tered in the lower male genitourinary tract, [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16] and occasionally in the female genitourinary tract. [17][18][19][20][21][22][23] Other sites outside these regions have been described, including the anal canal, 24 pericolic fat, 25 retroperitoneum, 26 and spleen.…”

Benign Diseases of the Bladder

“…[106][107][108][109][110][111] These small foci of prostatic tissue are proposed to arise from embryonic remnants that are present within the trigone of the bladder and are most common along the midline. 112 Patients often present with microscopic or gross hematuria.…”