Merck Manual

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Osteochodrosis lesion, lateral trochlear ridge of the distal femur, stifle joint, horse
Osteochodrosis lesion, lateral trochlear ridge of the distal femur, stifle joint, horse

Osteochodrosis lesion of the lateral trochlear ridge of the distal femur in the stifle joint of a horse.

Courtesy of Dr. Chris Whitton.