Skip to Content
Medical Term:


Pronunciation: os'te-o-kon-dro'ma


A benign cartilaginous neoplasm that consists of a pedicle of normal bone (protruding from the cortex) covered with a rim of proliferating cartilage cells; may originate from any bone that is preformed in cartilage, but is most frequent near the ends of long bones, usually in patients 10–25 years of age; the lesion is frequently not noticed, unless it is traumatized or of large size; multiple osteochondromas are inherited and referred to as hereditary multiple exostoses.

Synonym(s): solitary osteocartilaginous exostosis

[osteo- + G. chondros, cartilage, + -oma, tumor]

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.