Giant cell tumor of the first metatarsal.

Giant cell tumor (GCT) is a benign locally aggressive tumor with a tendency for local recurrence. GCT of metatarsal is of rare occurrence with very few cases reported so far. GCT in this location is rare and should be considered in the differential diagnosis of a destructive bony lesion in both skeletally immature and mature patients. We report the case of GCT of 1 st metatarsal in a 28-year-old female and discuss the difficult aspects of diagnosis.