the major contributions of ct were : -- the capability of detecting the presence of osteoid osteoma not found by means of conventional radiographic techniques ; -- differentiation between benign osteochondroma and peripheral chondrosarcoma by measurement of the peripheral cartilaginous cap : this criterion , on the other hand , does not seem to be always reliable and useful ; -- differential diagnosis of different types of cystic and fibrocystic diseases ( simple and aneurysmal bone cyst , fibrous dysplasia ) ; -- evaluation of soft-tissue tumoral masses and of their extra-osseus extent in giant cell tumor and chondroblastoma ;
C0029423
benign osteochondroma
C0007301
cartilaginous