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A Ganglioglioma is rare brain tumor that commonly causes seizures.

Quick Facts

  • How are patient usually diagnosed with a ganglioglioma?  Patients may have seizures for months or years before the diagnosis is made, usually by MRI scanning
  • What procedures are used to confirm the diagnosis?  The diagnosis is usually suspected on a magnetic resonance imaging (MRI) scan; Confirmation requires biopsy and resection. 
  • Surgical removal of the tumor is often the best way to control seizures.  An important goal typically is complete removal of the tumor. In some cases, incomplete removal may be necessary if the tumor is located in critical areas of the brain
  • For tumors near language areas of the brain, obtaining a complete tumor removal may required an awake craniotomy.
  • UCSD has a comprehensive brian tumor surgery program, including in awake craniotomy techniques.  Exact mapping of the most important brain regions may require part of the operation to be performed while you are awake. UCSD has a team of neuro-anesthesiologists, neurophysiologists, and neuropyschologists that perform together with your neurosurgeon perform several "awake" brain surgeries each month.
  • Fortunately, most gangliogliomas are low grade and usually do not recur after removal.