Meningiomas are common intracranial tumors, the majority of which are considered benign. However, they sometimes show altered biologic behavior, associated with local aggressiveness and late distant metastasis. The authors report the case of a 12-year-old girl with a malignant meningioma of the right olfactory groove. Neurological examination showed right 1 and 2 cranial nerve total paralyisis. Radiologic findings demonstrated of frontobasal intracranial meningioma with surface erosion and extention of the frontal right bone associated with scalp, and with extension to the area of the nasal canal. The tumor had been totally removed by combined surgery (both transcranial and transnasal), an isolated subcutaneous metastasis developed at the right nasoethmoidal area of the scalp. After removal of this operation, radiotherapy and adjuvant chemotherapy were conducted. The patient has been tumor recurrence for 3 months, later and reoperated via bifrontal craniotomy extented to nasal cavity. The receurence of tumor was free in the both cranium and extracranium region. But, the patient was died 5 month later after the second operation. To our knowledge, there has not been previously reported same case, both with intracranial lesion and invasion of the scalp in the pediatric age. The prognosis of is poor if the tumor can be done extensive invasion of malignant meningioma on the scalp in the pediatric ages.

Keywords: Malignant meningioma, Subcutaneous lesion, Sculp, Pediatric age