Craniopharyngioma MRI

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

The findings on the MRI are:

Cysts
- Variable but 80% are mostly or partly T2 hyperintense
- T1: iso- to hyperintense to brain (due to high protein content machinery oil cysts)
Solid component
- T1 C+ (Gd): vivid enhancement
- T2: variable or mixed
Calcification
Difficult to appreciate on conventional imaging
Susceptible sequences may better demonstrate calcification

MR angiography: It may demonstrate displacement of the A1 segment of the anterior cerebral artery (ACA).

MR spectroscopy: Cyst contents may show a broad lipid spectrum, with an otherwise flat baseline.