Chondromyxoid fibroma of a metatarsal and cuneiform.

The occurrence of chondromyxoid fibroma in the foot is relatively rare, and it is highly unusual for the lesion to involve the epiphysis. The authors report a case of a highly aggressive tumor occurring in the first metatarsal bone, crossing the epiphysis and invading the medial cuneiform bone. A literature search did not reveal previous cases of chondromyxoid fibroma in this unusual location.