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Ruptured intracranial dermoid cyst - cerebellopontine angle

Case contributed by Hidayatullah Hamidi
Diagnosis certain

Presentation

Not present

Patient Data

Age: 35 years
Gender: Female

A large mixed density -mostly fat attenuating- mass lesion in the left cerebellopontine angle (consistent with dermoid cyst) causing compression over the pons and fourth ventricle with resultant proximal hydrocephalus.

There are multiple drops of fat in the cerebral sulci surrounding the brain mainly along both Sylvian fissures due to the ruptured dermoid cyst.

Case Discussion

Imaging features of the dermoid cyst are characteristic. They are usually fat-containing non-enhancing well-defined lobulated masses.

 

Note: The case is also contributed by Dr. Najibullah Rasouly.

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