Fig. 9
From: Uroperitoneum in cattle: Ultrasonographic findings, diagnosis and treatment
Ultrasonogram of the bladder in a cow with rupture of a persistent urachus. Ultrasonogram of the bladder obtained transrectally using a 5.0-MHz linear transducer in a 4-year-old Braunvieh x Brown Swiss cow with uroperitoneum caused by rupture of a persistent urachus. The persistent urachus is visible at the cranial pole of the bladder. 1: Rectum, 2: Anechoic fluid (uroperitoneum) surrounding the bladder, 3: Bladder, 4: Persistent urachus, Cr: Cranial, Cd: Caudal (from Braun et al. [2])