Pars tuberalis

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Phone:617-632-7753

The pars tuberalis is part of the anterior lobe of the pituitary gland, and wraps the pituitary stalk in a highly vascularized sheath.

It is an extension of the pars distalis up and around infundibulum.

Prinicipal cells of the pars tuberalis are low columnar in form, with the cytoplasm containing numerous lipid droplets, glycogen granules, and occasional colloid droplets. A sparse population of functional gonadotrophs are present(indicated by immunoreactivity for ACTH, FSH, and LH)^[1].

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