RUPTURED BLADDER ASSOCIATED WITH SMOOTH-MUSCLE ATROPHY OF THE BLADDERIN A NEONATAL FOAL

Rupture of the urinary bladder of newborn foals is thought to occur wh en pressure is applied to a distended bladder during passage through t he maternal pelvis. Although rupture of the bladder in utero has been reported, the histologic description of this condition has been inadeq uate. This report provides a histologic description of bladder rupture associated with atrophy of smooth muscle fibers in the bladder wall a t the site of rupture in a newborn foal.