病例報告:尿道海綿型血管瘤

劉品均、林益聖、許兆畬、歐宴泉、童敏哲

童綜合醫療社團法人童綜合醫院

Case report: urethral cavernous hemangioma

Pin-Chun Liu, Yi-Shang Lin, Chao-Yu Hsu, Yen-Chuan Ou, Min-Che Tung

Department of Urology, Tungs' Taichung Metroharbor Hospital, Taichung, Taiwan

Introduction:

Cavernous hemangiomas are unusual tumors that mainly distributed in skin and liver but rarely involving genitourinary system. We presented a rare case of urethral cavernous hemangiomas with symptoms of painless gross hematuria after ejaculation.

Presenting of case:

A 28-year-old male patient without past history, presented with painless gross hematuria after ejaculation for 5 years. Urine examination revealed neither hematuria nor pyuria. Sonography of urinary system was done and disclosed smooth urinary bladder wall and no evidence of hydronephrosis. Semen analysis showed milky white appearance with normal semen parameters. No hematospermia was found. Pelvic MRI was performed and revealed no visible cystic lesion in prostatic gland and adjacent structure.

A vascular mass located at posterior aspect of membranous urethra distal to the verumontanum was found by further diagnostic cystoscopy. Transurethral resection and electro cauterization were performed successfully. Microscopically, the vascular mass was composed of cystically dilated thin-walled vessels filled with blood and lined by flat endothelium, and highlighted by Factor VIII special stains. Cavernous hemangioma was confirmed. The patient returned to outpatient department smoothly without complaint about gross hematuria or hematospermia.

Discussion: