Brain Stem Gliomas CT

Brain Stem Gliomas Microchapters
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Sujit Routray, M.D. [2]

CT

Head CT scan is helpful in the diagnosis of brainstem gliomas. The findings will vary with the tumor type.

• Diffuse brainstem glioma
  • Typically hypodense with little, if any, enhancement
• Focal brainstem gliomas
  • Isointense on CT
• Tectal gliomas
  • Typical CT finding is homogeneous expansion of tectal plate, isodense to grey matter with minimal enhancement on postcontrast images. On CT, it is common to find a central tectal calcification.