Abstract
Two cases of malignant angioblastoma of tibia are described, one finally treated by amputation and the other by segmental resection and grafting. They have remained free from signs of local recurrence or distant metastasis for five and a half and ten and a half years respectively. Both showed prominent areas of neoplastic mesenchymal angioblastic tissue which closely imitates solitary fibrous dysplasia.
The natural history and radiological characteristics of these little-known tumours, long thought to be "adamantinoma" of bone, are described.