• Journal of Korean Neurosurgical Society
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• v.29 no.5
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• pp.680-683
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• 2000

Osteosarcoma is the most frequently encountered primary malignant tumor of the bone. But primary osteosarcoma of the skull(POS) is rare. The author presents a case of skull neoplasm identified as osteogenic sarcoma. A twentyseven-years-old male patient was admitted because of painful swelling at left temporal and zygomatic area with impairment of extraocular movement. Chest film and long bone series showed no evidence of abnormality. Skull films revealed round irregular bony destructive area at the left pterional area. CT and MRI revealed expansile destruction of the left sphenoid bone, lateral orbital wall and temporal bone within the hemorrhagic mass lesions which showed wall enhancement. Histologic examination confirmed a rare variant of osteosarcoma of the telangiectatic type.