Close
What would you expect to see if this were an osteochondroma?
Medullary continuity. This lesion appears to be coming off the the cortex instead of being continuous with the medullary cavity of the bone.
There is an irregularly shaped, predominately well-defined osseous excrescence at the radial aspect of the distal metaphysis of the second metacarpal. This lesion shows underlying cortical irregularity and no evidence of medullary continuity. No periosteal reaction is identified, and there is no associated soft-tissue mass visualized.
A bone island (enostoma) is noted in the head of the fourth proximal phalanx and radial styloid.