Merck Manual

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Osteochondritis dissecans, femoropatellar joint, horse
osteochondritis-dissecans-femoropatellar-joint-horse-adams-sized
Osteochondritis dissecans, femoropatellar joint, horse

    Lateromedial radiographic view of the stifle joint of a horse with an OCD lesion of the lateral femoral trochlea. Note the extensive flap and marked disruption of the trochlea (circled).

Courtesy of Dr. Stephen Adams.