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A 2-year-old neutered male domestic cat was referred for possible perineal urethrostomy because of a history of recurring bouts of cystitis and urethral obstruction. Results of the physical examination were unremarkable, and the bladder was easily expressed. Results of serum biochemical analysis and a CBC from the referring veterinarian were within reference limits except for a high concentration of glucose (166 mg/dL; range, 76 to 145 mg/dL). Abdominal ultrasonography was performed to further evaluate the urinary bladder (
Transverse ultrasonographic image of the liver and gallbladder of a 2-year-old neutered male domestic cat with
Dr. Secrest's present address is the Veterinary Medical Teaching Hospital, College of Veterinary Medicine, University of Missouri, Columbia, MO 65211.