Guest guest Posted January 28, 2008 Report Share Posted January 28, 2008 's is the outer layer though I imagine inner layers might be affected in rare cases but for the diagnosis it is the outer layer. Not everyone has all the symptoms. 95% have the skin darkening but just because a person doesn't have it doesn't mean they don't have 's. It happens in the creases because it is a skin pressure thing. Folds or creases of the skin have more pressure. Oh, and adrenal insufficiency and 's are the same thing. 's is just the most extreme form of adrenal insufficiency. Most medical journals will use the terms interchangeably. Cheri -----Original Message----- Doesn't 's affect the entire gland, not just the zone that the makes the glucocorticoids? There are three layers, so could you chekc for deficiency in the other layers? If it's autoimmune ('s may technically be ONLY autoimmune), they can test for adrenal antibodies. I'm not sure of the dark creases are definitive. This is based on increased ACTH prodcution by the brain (same biosynthetic pathway as melanocortin - why it happens in the *creases* of the skin I don't know..). And we all know that someone can be hypoT with normal TSH, so why not hypo-cortical with normal ACTH? But the cortisol-ACTH loop may work differently than the thyroid-TSH loop. Especially since there are two main thyroid hormones, both of which may be involved in TSH regulation, and I'm not sure that there is any 'storage' or other form of cortisol that might regulate ACTH as will the free form. Jim . Quote Link to comment Share on other sites More sharing options...
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