Ultrasonographic and Computed Tomographic Diagnosis of Urachal Diverticulum Concurrent With Pyometra in a Dog.

A young, intact, female, American Bulldog was presented for hemorrhagic vaginal discharge. Anemia, thrombocytopenia, leukocytosis with neutrophilia, azotemia, and electrolyte disturbances were detected in the bloodwork. A urachal diverticulum with concurrent uterine distention was identified by ultrasonography and CT. The diverticulum was excised in surgery, and an ovariohysterectomy was performed. Histopathological examination confirmed an abscessed bladder wall with concurrent pyometra.