[A new special form of enchondromatosis].

A case of enchondromatosis with an unusual course was observed. The enchondromas originated in the patellae, subsequently with rapidly spreading metaepiphyseal growth on the knee joints and distally on the medial side of the right tibia. Cold-sensitive exanthema, pigment spots, drumstick fingers, watch glass nails, dentition disorders. Since radical surgery on the right femur 8 years ago there has been no recurrence.