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Contrast-enhanced MRI shows cartilaginous tissue originating from the carpals and surrounding the ossifications. The signal intensity of the extraosseous tumor part is identical to that of the cystic, intraosseous inclusions.
Diagnosis: hemimelic epiphyseal dysplasia (Trevor's disease, Fairbank's disease)
The finding is confirmed in the pathohistology; a radical removal of tissue is not performed.
