... autoimmune autonomic ganglionopathy (AAG), in which symptoms are causally related to the presence of antibodies to ganglionic nicotinic acetyl choline receptors. Differential diagnosis consists principally of toxic/metabolic disorders and other autoimmune illnesses, most notably Sjögren’s syndrome...

...Oxford University Press Autoimmune autonomic disorders may be idiopathic, paraneoplastic, parainfectious, or idiopathic and may manifests with either autonomic failure or hyperactivity of subacute onset. Autoimmune autonomic ganglionopathies or neuropathies manifest with either generalized...

.... autoimmune autonomic ganglionopathy orthostatic hypotension familial dysautonomia baroreflex anhidrosis chronic idiopathic anhidrosis (CIA) pure autonomic failure (PAF) Guillain-Barre syndrome porphyria Autoimmune autonomic ganglionopathy AAG Autonomic failure pure Autonomic neuropathies Autonomic...

... testing showed 82% anhidrosis. A nuclear medicine gastric-emptying study indicated delayed gastric emptying and colonic hypomotility. Serum testing was markedly positive for ganglionic (alpha 3) acetylcholine receptor autoantibodies. The patient was diagnosed with autoimmune autonomic ganglionopathy...