Case contributed by Dr Bahman Rasuli


Non-specific headache.

Patient Data

Age: 70 years
Gender: Male

There is a large well circumscribed heterogeneously enhancing lesion with internal cystic degeneration within the right lateral ventricle.

Extension of the mass into third ventricle with secondary obstruction of the foramen of Monro and supratentorial hydrocephalus also is seen.

Periventricular signal changes most probably representing small vessel ischemic changes.



Case Discussion

Most supratentorial subependymomas have characteristic appearance on MR imaging.

Subependymomas are usually homogeneous tumors with no or minimal enhancement, which differentiates them from other supratentorial intraventricular tumors as well as from infratentorial subependymomas.

However, the presence of symptoms,  high vascularity, heterogeneous enhancement and large size should not deter the radiologist from including it in the differential diagnosis.

It is important to consider supratentorial subependymomas in the differential diagnosis of supratentorial lesions, even if their radiological features are atypical.

Our case was pathologically proven.

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Case information

rID: 61868
Published: 25th Jul 2018
Last edited: 14th Aug 2019
Inclusion in quiz mode: Included
Institution: Jame Jam Imaging Center

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