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131224L - ADRENAL DISEASES (Word Slide)

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Lecture by for 4th year medical students on December 24, 2013 by Prof Omar Hasan Kasule Sr.


Types of adrenal steroids
·         Glucocorticoids: act on carbohydrate metabolism
·         Mineralocorticoids: Na, K, and fluid balance in distal kidney tubules
·         Androgens: converted to testosterone

Addison disease (primary hypoadrenalism)  1
·         Causes: autoimmune, infiltration, TB, surgical removal, hemorrhage/infarction, infiltration
·         Effects: Impaired glucocorticoid, mineralocorticoid, and androgen production

Addison disease (primary hypoadrenalism)  2
·         Symptoms: weight loss, anorexia, malaise, fever, weakness, depression, impotence/amenorrhoea, nausea/vomiting, diarrhea, constipation, confusion, syncope, abdominal pain, myalgia, joint pain
·         Signs: pigmentation, postural hypotension, weight loss, muscle wasting, dehydration, loss of body hair

Cushing’s syndrome (increased circulating glucocorticoids) 1
·         Causes: (a)  increased ACTH from pituitary, ectopic tumors, or drug administration (b) adrenal adenoma / carcinoma (c) iatrogenic glucocorticoid administration
·         Symptoms: weight gain, changed appearance, depression, insomnia, amenorrhea/oligomenorhea, poor libido, thin skin easy to bruise, acne, muscle weakness, back pain, polyuria/polydipsia, psychosis

Cushing’s syndrome (increased circulating glucocorticoids) 2
·         Signs: short stature, moon plethoric face, depression/psychosis, acne, hirsuitism, thin bruising skin, poor wound healing, pigmentation, skin infections, systemic hypertension, osteoporosis, pathological fractures, Kyphosis due to osteoporosis,  truncal / central obesity (buffalo hump), abdominal striae, rib fractures, proximal muscle weakness