Giant cell reparative granuloma of the hand: case report and review of giant cell lesions of hands and feet.

bones of the hands and feet can present a number of diagnostic challenges as both reparative and neoplastic lesions occur at these sites and are similar in clinical presentation, as well as radiologic and pathological appearance. In a review of 240 cases, Ostrowski and Spjut found 203 benign and 37 malignant lesions; 89 of the benign lesions were designated as florid reactive periostitis, bizarre parosteal osteochondromatous proliferation (Nora tumour), reaction to injury, or giant cell reparative granuloma (GCRG). This distribution and frequency of reactive lesions are unique to these sites, which are frequently exposed to trauma and injury. In this series, there were 26 lesions that were giant cell rich, of which 24 were designated as GCRGs and 2 as giant cell tumours (GCTs), highlighting the rarity of GCTs at these sites. However, the authors noted that many of their GCRG cases had originally been diagnosed as GCTs. We describe a case of GCRG seen in a young man.