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Syndrome reference sheet
Generated 12 Oct 2026
Endocrinology · Endocrinology / Autoimmune endocrinology Autoimmune polyglandular syndrome type 2
Also known as: APS-2; Schmidt syndrome
Addison disease with autoimmune thyroid disease and/or type 1 diabetes.
- Medical specialty
- Endocrinology
- Subspecialty
- Endocrinology / Autoimmune endocrinology
- Sex & age distribution
- Male: affected; Female: affected, more common; Children: rare; adults aged 20–40
- Gene(s) involved
- CTLA4, HLA-DR3, HLA-DR4, MICA, PTPN22
Etiology & mechanism
HLA-associated polygenic autoimmunity.
Gene(s) involved (5)
CTLA4HLA-DR3HLA-DR4MICAPTPN22
Symptoms & signs (8)
adrenal insufficiencyfatiguehyperthyroidismhypogonadismhypothyroidismpernicious anemiatype 1 diabetesvitiligo