We report on 2 debilitated male patients who had penile urethral compl
ications of transurethral catheter drainage. One patient had a urethra
l diverticulum, and the other had a Foley catheter misplaced through a
urethral perforation. Both lesions mimicked primary intrascrotal mass
es on physical examination and were therefore evaluated by scrotal son
ography. The correct diagnosis of each lesion required careful examina
tion of the mass and its anatomic relationship to the adjacent urethra
. Penile urethral complications of catheterization in debilitated pati
ents must be included in the differential diagnosis of scrotal cystic
masses. These cases also emphasize the necessity of a thorough sonogra
phic examination that extends beyond the specific area of presumed cli
nical interest. (C) 1998 John Wiley & Sons, Inc.