Bladder neck hypertrophy and wide bladder neck anomaly (WBNA).

The urodynamic findings of 247 patients with a neurogenic bladder dysfunction were analyzed to evaluate factors which influence the X-ray picture of the bladder neck and urethra. Patients were classified according to the classification of Bors and Commarr, additionally different types of reflex detrusor activity could be differentiated in cases suffering from a supranuclear lesion. As the micturition cystourethrography of female patients with a supranuclear lesion looks similar to the X-ray picture of young girls with a WBNA a second analysis was made to compare the urodynamics of both groups. It is to note that in supranuclear lesions detrusor-sphincter dyssynergia and the type of reflex detrusor activity mainly form the shape of the posterior urethra, neither the duration of the lesion nor the level of spinal cord injury have any influence.