The Misdiagnosis of Intravesical Ectopic Prostatic Tissue as a Tumor

• Published in: Urologia internationalis Vol. 107; no. 7; p. 738
• Main Authors: Wu, Yong-Lu, Li, Zhi-Qin, Wu, Ai-Ming
• Format: Journal Article
• Language: English
• Published: Switzerland 01.08.2023
• Subjects: Choristoma - diagnostic imaging; Choristoma - pathology; Cystoscopy; Diagnostic Errors; Humans; Male; Middle Aged; Prostate - diagnostic imaging; Prostate - pathology; Urinary Bladder - diagnostic imaging; Urinary Bladder - pathology; Urinary Bladder Neoplasms - diagnostic imaging; Urinary Bladder Neoplasms - pathology; Bladder; Nephrogenic adenoma; Tumor; Pneumovesicoscopy; Ectopic prostatic tissue
• ISSN: 1423-0399
• DOI: 10.1159/000528347

Ectopic prostatic tissue is rare, and it is usually only discovered by chance during imaging examinations or surgery. However, between 1967 and 2021, reports of ectopic prostatic tissue in the medical literature increased. It is rarely reported that ectopic prostatic tissue can be misdiagnosed as a nephrogenic adenoma (NA). This case study aimed to increase the awareness of ectopic prostatic tissue to improve its rates of diagnosis. This paper is focused on a 45-year-old male patient with a history of bladder lesions that were accidentally discovered through a health examination. A computed tomography scan revealed a homogeneous isoechoic mass in the posterior inferior wall of the bladder. At first, a transurethral cystoscopy revealed a smooth sessile mass covering the normal bladder mucosa, which was located in the middle of the interureteric ridge. The biopsy results suggested a possible intravesical NA. The mass was then completely resected under pneumovesicoscopy, and the pathological diagnosis was ectopic prostatic tissue. The clinical symptoms of ectopic prostatic tissue are similar to other bladder neoplasms, but there are too few characteristics available in imaging examinations to allow for an accurate diagnosis. Since ectopic prostatic tissue can present as a tumor in the bladder, urologists may easily misdiagnose the condition. Surgery is the basis of treatment for ectopic prostatic tissue, and it has a good prognosis.