Pathoma: Pituitary Flashcards Preview

Pathology Unit 5 > Pathoma: Pituitary > Flashcards

Flashcards in Pathoma: Pituitary Deck (18):
1

"benign tumor of anterior pituitary cells"

Pituitary adenoma

2

Are pituitary adenomas functional tumors?

Yes and No (can be either)

3

What is the most common pituitary adenoma?

prolactinoma

4

How does prolactinoma present in females?

galactorrhea and amenorrhea

5

How does prolactinoma present in males?

Decreased libido and headache

6

How does GH cell adenomas present in children and adults?

Children--> gigantism

Adults--> acromegaly

**there can be secondary diabetes mellitus

7

Which pituitary adenoma presents with Cushing symptoms?

ACTH adenoma

8

When do symptoms of hypopituitarism arise?

when >75% of pituitary parenchyma is lost

9

Name 3 cause of hypopituitarism?

1- pituitary adenoma/ craniopharyngioma

2- Sheehan syndrome

3- Empty Sella Sydrome

10

"pregnancy related infarction of the pituitary gland"

Sheehan syndrome

11

"congenital defect that result in herniation of arachnoid into the sella and a flat pituitary due to compression"

empty sella syndrome

12

What causes central diabetes insipidus?

ADH deficiency

13

Symptoms of central diabetes insipidus?

Polyuria, polydipsia, Hypernatremia, high serum osmolarity, and low serum osmolarity

14

"Impaired renal response to ADH"

nephrogenic diabetes insipidus

15

Which drugs can cause nephrogenic diabetes insipidus?

Lithium and democlocycline

16

Symptoms of nephrogenic diabetes insipidus?

Polyuria, polydipsia, hypernatremia, high serum osmolarity

17

ADH level in SIADH?

INCREASED

18

Symptoms of SIADH?

Hyponatremia, low serum osmolarity, mental status changes and seizures