[Metacarpal aneurysmal cysts. Report of two cases and review of the literature].

The authors present two cases of aneurysmal cyst, one primary and one secondary. The first case was treated surgically by resection and bone graft. The second case, associated with a giant cell tumors, was initially treated surgically by resection and bone graft, but, because of a rapid recurrence of the giant cell tumor, the middle finger had to be amputated. The clinical, radiological and histopathological features of aneurysmal cyst are recalled. The various therapeutic modalities recalled and their value in this particular site are discussed.