A 67-year-old woman presented with pain and swelling over her ring met
acarpal. There was no history of antecedent blunt ol penetrating injur
y. X-rays showed a progressively destructive lesion of the metacarpal
shaft and base. Subsequent biopsy revealed a giant cell reparative gra
nuloma. Because oi her age and the presence of osteoarthritis and digi
tal stiffness, a ray amputation was carried out. Follow-up examination
3 years later revealed no evidence of recurrence.