The urethral diverticulum is a pouch in the urethra-vaginal septum communicating with the urethral canal (Nel 1955). The diverticulum may be congenital (Counsellor 1949; Gilbert and Cintran 1954; MacKinnon et al. 1959; Silk and Lobowitz 1969) or acquired. The congenital variety may arise from a remnant of Gartner’s duct, faulty union of the primordial folds, cell rests, vaginal wall cyst of the müllerian origin or congenital dilatation of the paraurethral ducts. The acquired variety may develop as a result of trauma to the urethra commonly due to childbirth, infection and obstruction in the paraurethral glands (Edward and Beebe 1955; Coddington and Knob 1983; Ginsburg and Genadry 1984). The overwhelming majority of diverticuli are considered to be acquired, although it may be difficult to determine whether a diverticulum in the adult is congenital or acquired (Nel 1955). Some authors (Peters and Vaughan 1976) believe that all diverticuli are acquired.
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