Mesenchymal chondrosarcomas are a rare chondrosarcoma subtype.
They are found in both bone and soft tissues (see: extraskeletal chondrosarcoma).
Mesenchymal chondrosarcomas are characterized by bimorphic histology:
- densely packed small round blue cells similar to those seen in Ewing's sarcoma
- cells are seen in a perivascular arrangement which is reminiscent of hemangiopericytomas
- malignant cartilaginous tumor