Abstract

A cross-bred cow aged 2 years was presented with a history of dysuria and anorexia. No improvement was noticed upon treatment. The animal died after 1 week. On postmortem examination, the kidneys, ureter, and the bladder revealed calculi of varying sizes ranging

from 2 mm to 6.5 cm (fig.). The kidneys appeared pale and soft. All the calyces contained calculi. The largest calculi was recovered from the pelvis of the right kidney. Both the ureters were occluded with calculi. The bladder also contained calculi of varying sizes. The calculi were of different shapes with sharp edges. The chemical examination revealed the calculi were of

hippuric acid. No references could be traced out regarding the observation of a kidney stone as big as this.

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