NCIt synonyms : High Grade Chondrosarcoma; High-Grade Chondrosarcoma; Grade III Chondrosarcoma;
NCIt definition : A high-grade chondrosarcoma arising in the medulla of bone or within the cartilaginous
cap of a pre-existing osteochondroma. It is characterized by the presence of increased
cellularity and a greater degree of nuclear atypia, hyperchromasia, and mitotic activity
as compared to grade 2 chondrosarcoma.;