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Arachnoid cyst - left cerebellopontine angle

Case contributed by: Dr Gagandeep Choudhary

From the case: Arachnoid cyst - left cerebellopontine angle

Modality: MRI

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DWI

DWI-No restricted diffusion

Case Discussion:

MRI demonstrating a left cerebellopontine angle arachnoid cyst. Note how the region exerts mass effect and follows CSF on all sequences including DWI / ADC.