Chapter 24- Adrenal, MEN, And Pineal Flashcards
What is the most common cause of cushing syndrome
Cushing disease (aka primary pituitary adenoma)
What are the tumors that can cause primary adrenal disease
10% adenoma
5% carcinoma
What is the size of the adrenal gland in the case of ectopic sources of cortisol and steroids
Atrophy
What is the size of the adrenal gland in the cause of ACTH dependant Cushing syndrome
Large
What is the difference between an adrenal cortical adenoma and carcinoma
The size, with greater than 200 grams being a carcinoma
What is Conn’s syndrome
Primary hyperaldosteronsim
What are the findings in Conn’s syndrome
aka Primary hyperaldosteronism
- Hypertension
- Hypokalemia
- Hypomagnesemia
What is the reason for hypertension in Conn’s syndrome
Aka hyperaldosteronism
-Refractory hypertension with increased sodium and water uptake in the kidney
What are some of the common causes for secondary hyperaldosteronism
- Diuretic use
- Decreased renal perfusion
- Arterial hypovolemic
- Pregnancy
- Renin secreting tumors
Which patients are seen to have aldosterone secreting adenomas
-Young Patients 30-40s
What are the size of aldosterone secreting adenoma
Small <2 cm
What are the histological findings in the case of aldosterone secreting adenoma
Spironolactone bodies
What are patients with aldosterone secreting adenomas at a higher risk of developing
-Ischemic heart disease
What should you investigate as the cause of high levels of plasma renin and aldosterone
Secondary hyperaldosteronism
What should you investigate as the cause of low levels of renin and aldosterone concentrations
Hyperaldosterone mimickers
What should you investigate as the cause of low levels of renin, but high levels of aldosterone
Primary hyperaldosteronism
What is the method of a pituitary causing virilization
ACTH stimulation of androgens
What are the adrenal causes of virilization
- Primary adrenal neoplasms (adenoma and carcinoma)
- Congenital adrenal hyperplasia (CAH)
What is the most common adrenal neoplasm that causes virilization
Carcinoma
What is the inheritance of congenital adrenal hyperplasia (CAH)
-Autosomal recessive
What is the cause of congenital adrenal hyperplasia
Defective enzyme in the steroidogensis
- 95% is caused by lack of 21-hydroxylase
- Causes lack of mineral and clucocorticoids, so just all androgens
What is the presentation of congenital adrenal hyperplasia
- Lack of 21 hydroxylase
- Salt wasting ( no mineralcoriticoiuds) resulting in hyponatremia, hyperkalemia, and hypotension
-Virilization (at birth) in workmen
What is the long term effect of adrenomedullary dysplasia
Hypotension (Lack of aldosterone)
What is a method for testing for congenital adrenal hyperplasia
- serum 17-hyroxyprogesterone levels
- ACTH stimulation test, as increasing ATCH will result in more androgens and no other product
What is the therapy for congenital adrenal hyperplasia
Glucocorticoids to replenish cortisol
Mineralcorticoid as necessary