Haemangioma of bone with radiographic appearances simulating a giant cell tumour

A case is described of haemangioma of the proximal end of the humerus which simulated a giant cell tumour on radiography. An attempt at biopsy, carried out elsewhere, had failed because of severe haemorrhage from the tumour during operation. It was treated by en bloc resection and endoprosthesis with a good result after one year.