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Search: Organ site Search: Tumor / Syndrome
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WHO Classification of Tumours
Osteochondroma
Nasal cavity and Sinuses


Definition

A common, benign cartilaginous neoplasm arising from the metaphysis of bone. The tumor grows on the surface of the bone; it may be pedunculated or sessile. It is characterized by the presence of chondrocytes, a cartilage cap, and a fibrous perichondrium that extends to the periosteum of the bone. In some cases, there is a 8q24.1 deletion.