[Benign cartilaginous tumors]

Benign cartilaginous tumors are the most frequent bone tumors. At radiography they are not seldomly detected as an additional finding. Most osteochondromas and enchondromas can be diagnosed radiologically based upon their morphology. However, differentiation of a low grade chondrosarcoma from an enchondroma is difficult, and differentiation of a peripheral chondrosarcoma from an osteochondroma can be difficult. Clinics, localization, age distribution and morphology of benign cartilaginous tumors are presented and the most important differential diagnoses are given.