Cystic dilatation of Cowper's gland duct--an overlooked cause of urethral symptoms?

Dilatation of Cowper's gland duct was diagnosed in four men with symptoms including post-voiding dribbling, frequency of micturition, dysuria and hematuria. Cystourethrography gave the correct diagnosis in all cases. Treatment consisted of transurethral incision of the cystic excretory duct, providing marsupialization into the urethra. Investigation of longstanding or recurrent episodes of urethral symptoms in men should include cystourethrography with this lesion in mind. It seems to be less rare than was previously assumed.