Suprapineal recess

{{Short description|Anatomical structure in the ventricular system of the brain}}

{{More citations needed|date=March 2024}}

{{Infobox brain

| Name = Suprapineal recess

| Latin = recessus suprapinealis

| Image = Gray736.png

| Caption = Drawing of a cast of the ventricular cavities, viewed from the side.

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The suprapineal recess is an anatomical structure in the ventricular system of the brain. It is located in the posterior part of the third ventricle, overlying the cerebral aqueduct.{{Cite journal |last1=Tsutsumi |first1=Satoshi |last2=Ono |first2=Hideo |last3=Yasumoto |first3=Yukimasa |date=July 2017 |title=The suprapineal recess of the third ventricle: an anatomic study with magnetic resonance imaging |url=https://pubmed.ncbi.nlm.nih.gov/27942944/ |journal=Surgical and Radiologic Anatomy |volume=39 |issue=7 |pages=725–730 |doi=10.1007/s00276-016-1794-7 |issn=1279-8517 |pmid=27942944}}

In severe cases of hydrocephalus with increased pressure, this structure can dilate causing mass effect on the midbrain resulting in Parinaud's syndrome with bilateral inward and downward deviation of the eyes.