Chondrosarcoma-A Multi-Faceted Entity

Chondrosarcoma (CS) accounts for 20-27% of all primary malignant tumors of bone mostly seen in older age group [1]. It may be primary or secondary occurring in 2nd to 5th decade. The long bones especially the metaphysis are the most common sites. Axial skeleton, skull, jaw, small bones of hand and feet are other sites that can be involved. Though rare, extraskeletal CS may occur anywhere in the body. The conventional CS are primary or secondary. Primary chondrosarcoma may be intramedullary or Juxtacortical. Secondary CS arises from Osteochondroma or Enchondroma. Nonconventional CS are clear cell, myxoid, mesenchymal, extraskeletal, and dedifferentiated. Usual distribution of these tumors is long bones (45%) or pelvis (25%). The spine (7%), scapula (5%), cervical spine (6-7%), craniofacial bones (2%), hand and foot are rarely affected [2].