Pathology of the pituitary gland Flashcards
1
Q
what does prolactinoma cause
A
hyperprolactinaemia amenorrhea galactorrhoea loss of libido infertility
2
Q
physiologic cause of hyperprolactinaemia
A
pregnancy
nipple stimulation
3
Q
pathologic causes of hyperprolactinaemia
A
lactotroph hyperplasia - interference with dopamine inhibition
4
Q
corticotroph cell adenoma manifestations
A
hypersecretion of cortisol (cushings disease)
5
Q
causes of hypopituitarism
A
surgery or radiation
ischaemic necrosis of AP
hypothalamic tumors
pituitary apoplexy
6
Q
Diabetes insipidus manifestations
A
ADH deficiency
excessive urination
polydypsia
7
Q
causes of diabetes insipidus
A
head trauma
tumours
inflammatory reactions to AP or hypothalamus
8
Q
Nephrogenic DI
A
unresponsiveness of renal tubules to ADH
