Primary urothelial carcinoma of the prostate: A rare case report.

Prostatic urothelial carcinoma is a rare disease. Medical misdiagnosis rates remain high because there are no specific clinical symptoms or imaging features, which decreases patient survival. We report a case of prostatic urethral cancer confirmed by transrectal ultrasound-guided prostate biopsy because of an abnormal digital rectal exam.

A 55-year-old man was referred to our hospital due to lower urinary tract symptoms that lasted for 5 years.

On digital rectal examination, a hard and enlarged prostate was detected. Computed tomography, bone scintigraphy, and magnetic resonance imaging indicated benign prostatic hyperplasia. The patient underwent transrectal ultrasound-guided prostate biopsy. From the histopathological examination and immunohistochemical markers, a diagnosis of high-grade prostatic urothelial carcinoma was made. We excluded the possibility of urothelial cancer originating in the bladder lining after transurethral resection of the bladder. Radical cystoprostatectomy was performed, followed by 6 cycles of cisplatin and gemcitabine chemotherapy. Postoperative pathology showed primary urothelial carcinoma of the prostate.

The patient recovered smoothly after surgery. After a 6-month follow-up, no evidence of local recurrence or metastatic disease was found.

This case reminds clinicians that, for middle-aged men with suspicious digital rectal examinations, a diagnosis of prostatic urothelial carcinoma should be considered. Initial radical surgery followed by combination chemotherapy is suggested for therapeutic management.

Medicine. 2019 Jan [Epub]

Jun Zhou, Cheng Yang, Zhaoxiang Lu, Li Zhang, Yu Yin, Sheng Tai, Chaozhao Liang

Department of Urology, The First Affiliated Hospital of Anhui Medical University.

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