Giant cell tumor-like lesions of bone; a preliminary report of a pathological entity.

In three cases of a giant cell tumor-like lesion of bone, the histological characteristics of the lesions were a fibrogenic stroma, capillaries, thick-walled blood vessels, multinucleated giant cells, osteoid tissue and bone trabeculae. It is believed that tumors of that kind are another giant cell variant that should be separated from the true giant cell tumor if for no other reason than the favorable response to conservative surgical therapy.