9371/3 Chondroid chordoma


ICD-O-3 topography code: C40-C41
ICD10: C40-C41

A slow-growing malignant bone tumor arising from the remnants of the notochord and occurring in the base of the skull. The tumor is characterized by a lobulated growth pattern, myxoid stroma formation, and the presence of physaliphorous cells and cartilage.