[Benign osteoblastoma of the hand. A case--review of the literature].

One case of a benign osteoblastoma, localised on the proximal phalanx of right thumb is reported. Three points are emphasized: the low frequency in the hand, only six observations are reported in the English literature, one from Jaffe (1932) and four from Lichtenstein (1964) and one from Mosher and coll (1978). The non-specificity of the signs and X-ray are must consider chondroma, giant cell tumor, chondrosarcoma or aneurysmal cyst. The lesion is benign and so the treatment must be conservative.