Giant cell tumour of the first metatarsal: a case report

摘要

The classical giant cell tumour (GCT) is a solitary lesion characterised by benign-appearing osteoclast-like giant cells and stromal cells that originate within the epiphysis of adults. Long tubular bones (75-90%) are frequent sites of involvement and make up 5% of all primary bone tumours. The foot is a rare site for GCT; less than 50 cases of GCT in foot bones have been reported in the literature. It is easy to misdiagnose a lytic lesion in the foot for commoner disorders. We report a case of GCT of the first metatarsal and highlight the importance of early and proper diagnosis.