Meningioma Symptoms & Causes

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How are meningiomas classified?

The vast majority of meningiomas are benign, although there are very rare malignant meningiomas. The World Health Organization (WHO) has developed a grading scale of tumors according to their appearance under a microscope and other factors. These grades are useful for predicting how the tumor will progress.

Using the WHO scoring system, tumors are graded as:

  • grade I (benign)
  • grade II (atypical)
  • grade III (anaplastic – refers to lack of structure in the cell)
  • grade IV (sarcomatous – the most serious kind of tumor)

More than 90 percent of meningiomas are classified as benign based on this system.

What are the symptoms of meningioma?

While each child may experience symptoms differently, some of the most common include:

  • seizures
  • hemiparesis (weakness on one side of the body)
  • visual disturbance
  • difficulty finding words

Meningiomas may also have no obvious symptoms and may be discovered through diagnostic scans obtained for other reasons. The symptoms of meningioma may resemble other conditions or medical problems. Always consult your child's physician for a diagnosis.

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