Ruptured intracranial dermoid cyst

Case contributed by Dr Ahmed Abd Rabou


Acute onset of severe headache.

Patient Data

Age: 40
Gender: Male

The patient had history of hydrocephalus and unerwent VP shunt

Complex right temporal intra axial lesion. In T1 it displays heterogenous intensity predominantly low signal in the center of the lesion with peripheral hyperintensity. In T2 the lesion is predominantly hyperintense in the center and periphery. The peripheral component becomes low signal in Fat suppressed T2. Scattered foci of hyperintense signal in T1 and FLAIR are seen dessiminated within the subarachnoid space.

Case Discussion

Diagnosis: Dermoid cyst after rupture

The dermoid cyst has ruptured and its fatty content become disseminated within the subarachnoid space resulting in T1/FLAIR hyperintense droplets. After evacuating its content, its center became hypointense on T1, and may resemble any other cystic lesions.

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Case information

rID: 22706
Case created: 18th Apr 2013
Last edited: 10th Feb 2017
Tags: brain, cyst
Inclusion in quiz mode: Included

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