A case series of eosinophilic esophagitis and primary adrenal insufficiency.

Although previously associated with secondary adrenal insufficiency and other autoimmune diseases, eosinophilic esophagitis has not been described in patients with primary adrenal insufficiency. In this case series, we describe three patients with eosinophilic esophagitis and primary adrenal insufficiency, including two patients with polyglandular autoimmune syndrome type 1. All patients experienced improvement in esophageal symptoms with treatment of eosinophilic esophagitis. The association between eosinophilic esophagitis and primary adrenal insufficiency is unclear, but may include underlying genetic predisposition and/or immune system dysregulation.