Colloid cyst

Case contributed by Frank Gaillard
Diagnosis certain

Patient Data

Age: Adult
ct

Single axial image from a CT of the brain demonstrates a small hyperdense colloid cyst or the roof of the third ventricle, without hydrocephalus. 

mri

Single selected images from an MRI of the brain, demonstrating the colloid cyst to be isointense to brain on both T1 and T2 weighted images. 

Case Discussion

Pathognomic appearances of a small colloid cyst

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