Presentation
Headache.
Patient Data
Age: 40 years
Gender: Female
From the case:
Epidermoid cyst - cerebellopontine angle
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An extra-axial fluid density SOL is present at right CPA, measured 67×53×48 mm in diameters. Mass effect on 4th ventricle, cerebellum & brain stem is present and causes three ventricular hydrocephalus. No adjacent bony erosion is evident.
From the case:
Epidermoid cyst - cerebellopontine angle
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There is an extraaxial SOL at right CAP. The mass is high signal on T2W sequence, heterogeneous on FLAIR images and hyposignal on T1W exam, shows no enhancement on post contrast exam. Some restricted diffusion is seen within the mass on DWI.
Three ventricular hydrocephalus is resulted
Case Discussion
This is the most common appearance of intracranial epidermoid cysts.
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