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Chondrosarcoma
Etiology

The etiology of chondrosarcoma is unknown.
Pathogenesis

Not understood.,
Epidemiology

Usually a tumor of older age groups.
Approximately twice as common in men as in women.
No racial preferences have been noted.
General Gross Description

Tumors exhibit features of cartilage, including abundant ground substance and chondrocytes.
Areas of calcification, necrosis and hemorrhage are seen in rapidly growing tumors.
Myxoid variants exhibit a viscous and gelatinous consistency.
Cellular atypia increases with poorly differentiated tumors.
•Examples:
Chondrosarcoma of the pelvis Chondrosarcoma lower end of humerus Chondrosarcoma from the pelvis
General Microscopic Description

Histologically, chondrosarcomas can be divided into three grades - grade 1 (most differentiated) to grade 3 (most anaplastic)
Grade 1 tumors resemble normal cartilage closely, with little deviation from normal histology.
Grade 3 tumors can show considerable cellular atypia.
Most common grade of chondrosarcoma is grade 1.
More aggressive grades show areas of necrosis and hemorrhage.
The myxoid variant exhibits areas of myxomatous matrix.
•Examples:
Low power view of a chondrosarcoma Medium power view of a chondrosarcoma Medium power view of a chondrosarcoma High power view of a chondrosarcoma High power view of a chondrosarcoma Low power view of a chondrosarcoma Low power view of a chondrosarcoma
References

Cotran RS, Kumar V, Robbins SL: Robbins Pathologic Basis of Disease. 5th edition. Philadelphia, W.B. Saunders, 1994, pp. 1240.

For Most Current Information Search Medline at National Library of Medicine
This link will directly take you to the relevant new literature
Chondrosarcoma
Synopsis by: T.V. Rajan M.D. Ph.D. (T1X500M92203)[56]
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