Chondrosarcoma

Chondrosarcoma is a malignant bone tumor arising from cartilaginous tissue, most frequently occuring at the ends of the femur and tibia, the proximal end of the humerus and the pelvis; and presenting with a palpable mass and progressive pain. Chondrosarcoma is usually slow growing at low histological grades and can be well managed by intralesional curettage or en-block wide resection.

Hyperostosis

Excessive growth or abnormal thickening of bone tissue.


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PMID (PMCID)
11212904
 FEMALE Middle Aged
Intracranial low-grade chondrosarcoma with hyperostosis of the skull: a case report.
Oikawa H, Satoh T, Masuda T, Arai H, Ehara S, Muro-Oka G.
J Neurooncol. 2000;49(3):249-54.
Intracranial chondrosarcoma showing hyperostosis of the skull has not been reported in the cases.
3143243
 MIXED_SAMPLE Adult
Intracranial dural chondrosarcoma.
Lee YY, Van Tassel P, Raymond AK.
AJNR Am J Neuroradiol. 1988;9(6):1189-93.
Dural chondrosarcoma tends to be less calcified or even to lack matrix calcification; it is associated with bone erosion but not with bone destruction or hyperostosis; and it usually appears avascular at arteriography.