Osteochondritis dissecans is a transchondral fracture. Localization to the elbow is rare when it is usually located in the capitellum of the humerus or the radial head. Osteochondritis of the trochlea of the humerus is described in a 12 year old X-ray and MRI.

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Metaphyseal anadysplasia is a rare form of metaphyseal chondrodysplasia with well-defined radiological abnormalities. The prognosis is good as the natural course results in regression of the lesions with normal stature in adulthood. The few reported cases, exclusively in male children, indicated possible X-linked recessive transmission. The documentation of two affected sisters suggests genetic heterogeneity or another mode of inheritance.

No abstract