Multiple Enchondromatosis: Ollier's Disease.

Multiple enchondromatosis (Ollier's disease) is a rare disease characterized by widespread enchondromas with a unilateral predominance, especially in fingers in early childhood. In general, the short tubular bones of the hand are involved, with progressive lesions resulting in cosmetic problems and functional deformities. Herein, we, describe two cases of Ollier's disease diagnosed on X-ray of hands followed by MRI. There was no evidence of cortical disruption or periosteal reaction associated in either case. The bone lesions revealed cartilaginous matrix. MRI using conventional T1W and T2W sequences and STIR showed expansile lesions within the metacarpals and phalanges of both hands with cartilaginous matrix.