Clinical presentation:
Follow-up in a patient with hand pain.

There is a straight-line cleft in the epiphysis at the base of the metacarpal of the left middle finger. The margins are uncorticated and the appearance suggests probably past trauma. The absence of any adjacent metaphyseal distortion is unusual in epiphyseal fracture, but the smaller part of the epiphysis is displaced beyond the margin of the metaphysis. In this instance it is probably related to the mass of the adjacent chondroma, since the appearance is repeated in the middle phalanx. The slight irregularity in the edges of the cleft may be healing or may indicate an underlying weakness from an underlying partial defect in the epiphysis.

There are well-defined defects in the cortex and medullary bone of the diaphyses of the proximal and middle phalanges of middle and ring fingers. Further defects are present in the metaphysis of the proximal phalanx of the ring finger and bone architecture in its distal phalanx is coarsened.