Question:
What is secondary adrenal insufficiency?
Author: H KAnswer:
ACTH deficiency Acquired (iatrogenic - sudden cessation of exogenous cortisol/ treated Cushing's after adenoma removal/ hypopituitarism/ isolated ACTH deficiency) Inherited causes (isolated defect in TPIT mutation (promoter of POMC)/ post-translational defect processing POMC to ACTH by prohormone convertase 1 or 2 (PC1/2 mutation)/ POMC gene mutation (red hair pigmentation due to decreased MSH)
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