author(s)
S Uma, R Kumar, AW Lakkawar and MG Nair

abstract
A two-year old dachshund female dog was presented to a private clinic with a history of dysuria and hematuria since 5 days. The other signs exhibited included vomiting, anorexia and abdominal discomfort. The temperature, pulse and respiratory rates were elevated. On abdominal palpation, the bladder was found to be distended and yet the dog could not be induced to urinate. Abdominal radiography showed a radioopaque oval calculi in the urinary bladder. After anaesthetizing with xylazine @ 1 mg/kg and ketamine @ 5mg/kg, mid ventral laparotomy followed by cystotomy was performed and a single large calculi (4.5 cm x 3.5 cm) was removed. The urinary bladder wall was moderately thickened. The calculi was ellipsoidal in shape, white to light yellow in color with surface porosity and weighed 45 g. Biochemical analysis of the crystals revealed presence of calcium and magnesium phosphates. Following cystotomy and its management, the animal had an uneventful recovery.