A case of monostotic fibrous dysplasia in the proximal phalanx of an otherwise healthy, twenty-five year old is discussed. Fibrous dysplasia in the hand is rarely seen. Our patient presented with a swelling in his proximal phalanx. Xrays showed a lytic lesion. The lesion was treated with excision biopsy and cancellous bone grafting. Histological examination excluded malignancy but was diagnostically inconclusive. At recurrence, two and a half years later, a diagnosis of fibrous dysplasia was made. Intractable pain necessitated a ray amputation of the affected phalanx. The indications for surgical intervention in cases of fibrous dysplasia are discussed.peer-reviewe
