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Radiology General 737f2e3b

Epidermoids can be differentiated from arachnoid cyst on MRI by:

A
Contrast enhancement
B
Smooth margins
C
Restricted diffusion
D
CSF signal on FLAIR
High-Yield Explanation
C i.e. Restricted diffusion Epidermoids can be differentiated from arachnoid cyst characteristically by hyper-intense diffusion weighted images because of restricted diffusion of epidermoid cystQ. FLAIR and proton images are less specific than DWI.

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