How to Diagnose Malignant Giant Cell Tumor

The term “malignant giant cell tumor” has been used traditionally to describe a sarcoma arising from a giant cell tumor. However, the term has led to much confusion resulting in the inclusion of many giant cell rich sarcomas not related to giant cell tumor in the group. The term “malignancy in giant cell tumor” has the advantage of overcoming this problem in semantics. It is defined as a sarcoma arising in association with a well documented giant cell tumor, either synchronously or at the site of a previously documented giant cell tumor.