in osteoclastic giant cells of six different tumors of bones and joints ( fibrous dysplasia , proliferating giant cell tumor , malignant giant cell tumor , osteosarcoma after chemotherapy , malignant synovioma and ewing 's sarcoma ) activities of tartrate-resistant acid phosphatase , nadh-tetrazolium-oxidoreductase and , in three of them , of non-specific esterase are determined by enzyme histochemical methods .
C0206638
giant cells of
C0017525
giant cell tumor