Panner disease

Case contributed by Akos Jaray
Diagnosis certain


Swollen right elbow (right handed) with tenderness on the radial side Painful flexion/extension and pronation/supination. No history of trauma or signs of neurovascular damage.

Patient Data

Age: 9 years
Gender: Male

Frontal and dorsal fat pad sign (aka sail sign).

Radiolucent line through the growth plate of the capitellum.


The presence of joint fluid is confirmed.

Air crescent is noted in the lateral aspect of the capitellum.

The entire growth plate is affected.

Case Discussion

The osteochondrosis of the capitellum (Panner disease) should be differentiated from osteochondritis dissecans (focal fragmentation).

Rare condition usually affecting boys under 10 years affecting the dominant upper limb.

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