Mamillopontine distance - normal versus reduced

Case contributed by Dr Mostafa El-Feky
Annotated image

MRI brain

Mamillopontine distance in a normal case measuring 7.5 mm.

Modifications: measurement line, crop. 

Annotated image

MRI brain

Mamillopontine distance in a case of hydrocephalus measuring about 3 mm. This image is from the case Obstructive hydrocephalus (secondary aqueductal stenosis)

Modifications: measurement line, crop. 

Case Discussion

Mamillopontine distance is measured in mid-sagittal T1WI. Decreased mamillopontine distance is commonly seen in cases of hydrocephalus and intracranial hypotension.

Please refer to the article Mamillopontine distance for further discussion. 

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Case information

rID: 43180
Published: 5th Mar 2016
Last edited: 14th Aug 2019
Inclusion in quiz mode: Excluded

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