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Addison's Disease and Polyglandular Autoimmune Syndrome

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Thad returned from a Caribbean vacation in August, tan and tired. After a thorough exam, his doctor diagnosed him with autoimmune thyroid disease and prescribed thyroid hormone replacement pills. Four months later, he was still tan and tired. His doctor painstakingly explored what else could be causing the fatigue. Then he focused on the tan. It was winter, and Thad was not using tanning salons. The doctor ordered more blood tests, and diagnosed him with Addison's disease. His adrenal glands were not producing enough cortisol.

I read this story in Discovery magazine while I was on a Caribbean cruise myself. Addison's disease causes suntan? The article explained that when cortisol levels in the body drop, the brain sends a signal to the adrenal glands to produce more. This chemical signal also causes skin cells to produce more melanin pigment. The result is a remarkable all-over tan, including even the palms and armpits.

Autoimmune damage to two or more endocrine glands is called polyglandular autoimmune syndrome, PAS. There are two major subtypes. Similar to diabetes, type 1 affects mostly children and is less common than type 2, which usually begins in adulthood. There appears to be a long phase of cellular loss before the symptoms develop, and there may be many years between the development of autoimmune disease in the different glands. PAS 2 includes the following endocrine diseases:
1. Thyroid disease, 70 – 75 percent of cases
2. Type 1 diabetes (pancreas), 50 – 60 percent
3. Addison's disease (adrenal glands), 40 percent
4. Hypoparathyroidism, 3 percent
5. Hypopitutarism, 0 – 2 percent

In the less common PAS 1, children have a different incidence of endocrine diseases:
1. Hypoparathyroidism, 80 – 85 percent
2. Addison's disease, 60 – 70 percent
3. Type 1 diabetes, <20 percent
4. Hypogonadism, 12 percent
5. Thyroid disease, 10 percent
Children with PAS 1 commonly develop candidiasis, which is a type of yeast infection. When it affects the mouth, it is called thrush.

The treatment for PAS is replacement of the hormones that are not produced in sufficient quantities.

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We value and respect our HERWriters' experiences, but everyone is different. Many of our writers are speaking from personal experience, and what's worked for them may not work for you. Their articles are not a substitute for medical advice, although we hope you can gain knowledge from their insight.

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