ecchondroma

ecchondroma /ec·chon·dro·ma/ (ek?on-dro´mah) pl. ecchondromas, ecchondro´mata   a hyperplastic growth of cartilaginous tissue on the surface of a cartilage or projecting under the periosteum of a bone.

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ec·chon·dro·ma (kn-drm)

n. pl. ec·chon·dro·mas or ec·chon·dro·ma·ta (-m-t)

A cartilaginous tumor arising as an overgrowth from normally situated cartilage, such as a mass protruding from the articular surface of a bone. Also called ecchondrosis.

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ecchondroma, ecchondrosis

a hyperplastic growth of cartilaginous tissue on the surface of a cartilage or projecting under the periosteum of a bone.