Quadrigeminal cistern lipoma

Case contributed by Magdalena Chmiel-Nowak
Diagnosis certain

Presentation

Hyperechoic lesion in the quadrigeminal region on transcranial ultrasound.

Patient Data

Age: 7 months
Gender: Male
mri
This study is a stack
Sagittal
T1
This study is a stack
Axial
T1
This study is a stack
Axial
FLAIR
This study is a stack
Coronal
T2
This study is a stack
Axial
SWI
This study is a stack
Axial
DWI
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Info

There is a lesion in the quadrigeminal cistern on the left, with increased signal on T1WI and T2WI, chemical shift artifact on T2 and with a rim of 'blooming' on SWI. The combination of typical location and signal pattern is indicative of a quadrigeminal cistern lipoma.

Case Discussion

Intracranial lipomas are rare; they can be found near the midline and quadrigeminal cistern is one of their more frequent locations. They are usually discovered incidentally (like in this case) or can present with headache or epilepsy.

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