Female, 58 years old. History of fracture with recent MRI indicated non-union of a small 3mm fragment at radial base. Pain at base of 5th MC. There is deformity of the base of the fifth metacarpal indicating a healing fracture. There is scalloping of the anterior surface of the base of the fifth metacarpal that we presume represents chronic mechanical erosion as suggested on the recent MRI study. A 2 mm density adjacent to the medial aspect of the base of the fourth metacarpal may represent the small ununited fracture fragment suggested on MRI, but this is equivocal. Mild osteoarthritis affects the basilar joint and IP joints, and additional small cysts are seen in multiple carpal bones. There is slight widening of the scapholunate interval. A tiny ossicle adjacent to the ulnar styloid is unchanged.
Posttraumatic deformity of the base of the fifth metacarpal representing a healing fracture with other findings as described above.