Presentation
Tinnitus.
Patient Data
Age: Adult
From the case:
Colloid cyst
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Axial T2

Selected images from an MRI. In the roof of the third ventricle is a rounded lesion with low T2 and high T1 signal. No hydrocephalus. This is a characteristic appearance of a colloid cyst of the third ventricle.
Case Discussion
Typical appearances of an incidentally detected colloid cyst.