Cerebellopontine angle calcified mass

Case contributed by Ian Bickle
Diagnosis not applicable


Trauma. Bleed?

Patient Data

Age: 75 years
Gender: Female

4.1cm heavily calcified right cerebellopontine angle mass. Suggestion of possible intracannilicular extension but no expansion.

Mild-moderate mass effect on the right hemipons and middle cerebellar peduncle.

Partial effacement of the 4th ventricle.  No hydrocephalus.

Normal supratentorial brain.

Case Discussion

This case illustrates a incidental cerebellopontine angle (CPA) mass.

Meningiomas are common at this site and often calcify.   However, the main differential at the CPA is a vestibular schwannoma.  These rarely calcify although the 'ice cream' type morphology and suggestion of intracannilicular extension is more in keeping with a schwannoma.

MRI of the IAM's would assist in a definitive diagnosis if further investigation was felt merit/necessary.

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