Brain Tumors down arrow

Home > Disclaimer > Brain stem Glioma


Brain Stem Glioma




Diffuse Infiltrating


The most common type of brain stem glioma

Associated with the worst prognosis

Most arise in pons, causing diffuse enlargement of the pons



  • Short duration
  • Multiple, bilateral cranial nerve deficits (esp. VI and VII)
  • Long tract signs
  • Ataxia


Imaging shows:

  • Diffuse enlargement of the pons
  • Areas of hypodensity throughout the pons
  • Tumor may or may not enhance with contrast agents 
  • MR is the most accurate way to assess the extent of disease and is used to make the diagnosis. These tumors are:
    • Hypointense on T1
    • Hyperintense on T2


  • Very poor


MR image below shows a diffuse brain stem glioma (1) involving the pons.



Back to top