enchondroma

noun, plural en·chon·dro·mas, en·chon·dro·ma·ta [en-kuh n-droh-muh-tuh] /ˌɛn kənˈdroʊ mə tə/. Pathology.

1. a growth of cartilage within the shaft or substance of a bone.

noun plural -mas or -mata (-mətə)

1. pathol a benign cartilaginous tumour, most commonly in the bones of the hands or feet

n.

1. A benign cartilaginous growth starting within the medullary cavity of a bone that formed from cartilage.