“…8,11,[16][17][18][19][20] These disease-related chondromas may exhibit greater cytological atypia and cellularity and patients with Maffucci's syndrome have an increased risk of malignant 11,13 Most intracranial chondromas arise from the embryonic cartilaginous remnants of chondrogenic cells at the basilar synchondroses of the cranial base with a predilection for the spheno-ethmoid region, or in the paranasal sinuses with extension into the cranial cavity. 12,17,21,22 However, intracranial chondromas originating from the falx, the convexity dura, the tentorium, the choroid plexus, and the brain parenchyma have also been reported.…”