Intracranial bony tumors are relatively rare tumors of the CNS. 6 cases were reported, representing0. 28% of a series of 2121 patients undergoing biopsy for CNS tumors. Tumors were mainly osteosarcoma 1, os-teogenic giant cell tumor 1, chondrosarcomas 2 and osteochondrornas 2. All these 6 cases were studied. The age of4 patients was under 28 years. The course of the patient with osteogenic giant cell tumor was the longest, for tenyears and more. All the tumors were over 5 cm in diameter. osteochondroma lcca...