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Related to pineal recess: Infundibular recess
a diverticulum from the posterior part of the third ventricle extending back between the posterior commissure and the habenular commissure; sometimes extending into the stalk of the pineal.
Synonym(s): recessus pinealis [TA]
The recess of the roof of the third ventricle extending into the stalk of the pineal body.
See also: recess