Fiser ABSITE Ch. 20 Pituitary Flashcards
What inhibits prolactin secretions?
dopamine
What does the posterior pituitary produce?
ADH, Oxytocin
What nuclei in the hypothalamus produces ADH? and Oxytocin?
supraoptic, paraventricular
What does the anterior pituitary produce?
FSH, LH, ACTH, TSH, prolactin, GH
Nonfunctional tumors of the pituitary are almost always what type? what is the tx?
macroadenomas, transsphenoid resection
What rx might cause a response in TSH and FSH/LH secreting pituitary tumors?
bromocriptine (dopamine agonist)
What is the most common pituitary adenoma?
prolactinoma (mostly microadenomas)
Prolactinoma macroadenoma of the pituitary should be resected if hemorrhage, visual loss, CSF leak or if pt wants what?
pregnancy
Prolactinoma microadenoma of the pituitary should be resected if ____ unsafe or ineffective (is OK in pregnancy)
bromocriptine
Gigantism is a sx of acromegaly. Name 2 more.
HTN, DM
Name the acromegaly preoperative rx that inhibits the release of GH.
octreotide
How can acromegaly be life-threatening?
cardiac sx (valve dysfunction, cardiomyopathy)
Postpartum trouble lactating is usually the 1st sign of what syndrome?
Sheehan’s syndrome
Craniopharyngioma is a caclified cyst, remnants of what?
Rathke’s pouch