Metachondromatosis refers to the rare combination of:

In contrast to enchondromatosis alone, metachondromatosis carries an autosomal dominant inheritance.

Radiographic features

Characterized by the presence of both enchondromas and osteochondromas. The enchondromas can have a peculiar streak-like appearance .

Treatment and prognosis

With this condition, the cartilaginous lesions rarely undergo malignant transformation and spontaneous regression is usually expected. In asymptomatic and uncomplicated cases, no treatment is usually required.

History and etymology

First described by P Marotaeux et al. in 1971 .