[A case report: an urethral tumor with cavernous structure developed after optical urethrotomy]

A 70-year-old man underwent transurethral resection of the prostate (TURP) in February 1999 and he received optical urethrotomy because of urethral stricture in May. In May 2000, a distal urethral tumor was found by urethroscopy. Endoscopic resection of the urethral tumor was performed. The tumor consisted of normal urethral epithelial tissue and had a cavernous structure. We conclude that the tumor was vegetation of the corpus spongiosum penis.