Pituitary Flashcards
Knosp grading - resection/remission rates
1 - 83%/88%
2 - 71%/60%
3A - 85%/67%
3B - 64%/0%
4 - 0%/0%
Evaluate Pituitary function after how many Gy radiation?
30 Gy
Genetic conditions containing pituitary adenoma
AIP
MEN
Carney complex
McCune Albright
Pituitary tumor/paraganglioma
Somatic alterations in sporadic pituitary adenoma
GNAS - GH
USP8 - ACTH
How often are pituitary, tumors hereditary
~5%
What percentage of FIPA cases have an identified germline mutation? Which one?
10%
AIP
Inheritance pattern of AIP
Autosomal dominant with incomplete penetrance
Likelihood of AIP mutation, depending on age
< 18 years, up to 20%
3% in unselected
Clinical presentation of AIP
Tumor types
GH
GH plus PRL
PRL
rarely silent GH
TSH 1 case
Younger macros (teenagers)
Often invasive
Predisposition to apoplexy
Poor response to first gen somatostatin analogues
Average age of onset of AIP-negative FIPA
38
Which modern antipsychotic does not increase prolactin
Aripiprazole
Which cancers metastasize to Pituitary?
Renal cell
Lung
Breast
Appearance of histiocytosis on MRI with respect to contrast enhancement
Enhances
Appearance on MRI of met with respect to enhancement
Hypoenhancing