enchondromatosis en·chon·dro·ma·to·sis (ěn-kŏn'drō-mə-tō'sĭs, ěn'kŏn-drō'-)
n.
A congenital but nonfamilial disorder involving tubular bones, especially of the hands and feet, and characterized by a neoplasmlike proliferation of cartilage in the metaphyses that cause distorted growth in length or pathological fractures. Also called dyschondroplasia, Ollier's disease.