Chondromatosis Ossium; Chondroma (Chondromat-Base) + -Oz; Syn.: Dyschondroplasia, Ollier Disease]

Chondromatosis (from the ancient Greek χόνδρος - cartilage + μάθω - study), also called dischondriasis (according to some classifications, the equivalent of the Latin dischondria "improper bone replacement") is a rare hereditary disease of the skeletal system caused by damage to cartilage tissue.

***Chondromatoses are divided into two main types:***

Congenital (primary) chondroid dysplasia: typical for children and adolescents; Acquired (secondary) Ollier dysostosis - occurs in adult patients. Chondroma is a benign tumor consisting of cartilage tissue. Chondromas occur predominantly in the head, neck, arms, and legs. The surface of the tumor is covered with a capsule. There is a liquid or paste-like mass inside. Hondamas are immobile, do not bleed, and rarely grow or reproduce. They do not become malignant.

**Chondromatosis of bones** is a congenital disease characterized by disruption of the processes of growth, development and regeneration of bone tissue. It is manifested by long-term growth retardation of certain parts of the body and the formation of multiple “enchondromas” - pathological neoplasms at the ends of long tubular bones. The disease was first described and classified by a French physician and anatomy