Choroid plexus xanthogranulomas

Case contributed by Ammar Haouimi
Diagnosis almost certain

Presentation

Chronic headaches in diabetic patient.

Patient Data

Age: 50 years
Gender: Female

Bilateral well-defined cystic-like lesions of the choroid plexus of the trigone, isointense to the CSF on both T1 and T2, not attenuated on FLAIR sequence with high signal on DWI, intermediate signal on ADC and no enhancement on post-contrast sequences.

Small vessel ischemic changes are noted.

Case Discussion

MRI features most consistent with bilateral choroid plexus xanthogranulomas (incidental finding).

Choroid plexus xanthogranulomata are common, asymptomatic and discovered incidentally. They represent desquamated epithelium into the lumen of choroid cysts within the choroid plexus. 

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