label: Chondrosarcoma, Grade 3
label_lc: chondrosarcoma, grade 3
description: 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.