[Dyschondroplasia (Ollier) (author's transl)].

Over 20 years 5 patients with dyschondroplasia (Ollier) have been seen in the department for Orthopedics and Traumatology at Cluj-Napoca (Romania). Three were male, two female. 4 came from large families. First signs appeared gradually in 3, in 2 spontaneous fractures drew the attention to the disease. Radiographycally there were the typical chondromas with a strong tendency towards ossification in the adult. Shortening and deformity is proportional to the growth of the chondromas. The cause is unknown. In one case a chondroma became sarcomatous. One arm had to be exarticulated. This patient had no recurrence after 14 years.