Gliosarcoma

**Definition:** Rare mixed tumors of the brain and rarely the spinal cord which contain malignant neuroectodermal (glial) and mesenchymal components, including spindle-shaped fibrosarcoma cells. These tumors are highly aggressive and present primarily in adults as rapidly expanding mass lesions. They may arise in tissue that has been previously irradiated. (From Br J Neurosurg 1995 Apr;9(2):171-8)

**Tree numbers:** - C04.557.465.625.600.380.400 - C04.557.470.670.380.400 - C04.557.580.625.600.380.400

**Synonyms:** - Glioblastoma with Sarcomatous Component - Sarcomatous Glioma