title: Clinical features and treatment of meningiomas in children: report of 12 cases and literature review.
abstract: OBJECTIVE
  To study the clinical characteristics and treatment of meningiomas in children.
  
  
  METHODS
  One hundred and sixty-six meningiomas in children, including 12 cases treated in Qilu hospital and 8 series reported in the literature, were analyzed retrospectively on sex, age distribution, presenting symptoms, signs, radiological and pathological findings, treatment and prognosis.
  
  
  RESULTS
  The ratio of boys and girls was 2.3:1. The age ranged from 0.5 to 15 years (mean 9.9 years). Cranial nerve disorder (28%) and signs of chronic increased intracranial pressure such as headaches (62%), vomiting (53%) and papilledema (55%) were the most common symptoms. The most common location was the cerebral convexity (41%), followed by ventricles (15%), saddle areas (8%), cerebellopontine angles (8%), brain intraparenchyma (5%), parasagittal regions (4%), etc. Homogeneous density was observed in 62.3% of all cases, calcification in 14.8%, cystic components in 21.3% and intratumoral hemorrhage in 1.6%. On average, the epithelial and fibroblastic types of meningiomas took up 55% of the case, while the amount of malignant or atypical meningiomas averaged 9%. Complete tumor excision was achieved in 74%, and postoperative mortality was 3.3%.
  
  
  CONCLUSIONS
  Compared with meningiomas in adults, meningiomas in children occur predominantly in males with a lower incidence rate of epilepsy, and are frequently associated with multiple neurofibromatosis. Meningiomas in children have a poorer prognosis than those in adults. Degree of the first tumor resection, tumor location, pathological grade and association with neurofibromatosis are the most important factors influencing the patients' prognoses.
authors.affiliation: Department of Neurosurgery, Qilu Hospital of Shandong University, Jinan, PR China. ns3000@126.com
authors.forename: Yuguang
authors.initials: Y
authors.lastname: Liu
authors.forename: Feng
authors.initials: F
authors.lastname: Li
authors.forename: Shugan
authors.initials: S
authors.lastname: Zhu
authors.forename: Meng
authors.initials: M
authors.lastname: Liu
authors.forename: Chengyuan
authors.initials: C
authors.lastname: Wu
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D008577:Meningeal Neoplasms / Q000473:pathology* / Q000628:therapy*; D008579:Meningioma / Q000473:pathology* / Q000628:therapy*; D012189:Retrospective Studies