Although symptoms of AAG can vary from patient to patient, symptoms are dysautonomia. Hallmarks include: * Gastrointestinal dysmotility, including lack of appetite, nausea, constipation, diarrhea * Anhidrosis (decreased ability to sweat), often preceded by excessive sweating * Bladder dysfunction (neurogenic bladder) * Small fiber peripheral neuropathy * Severe orthostatic hypotension * Pupillary dysfunction * Syncope (fainting) * Sicca syndrome (chronic dryness of the eyes and mouth) See: Xerostomia#Sicca syndrome * No indication from the history or physical examination of cerebellar, striatal, pyramidal, and extrapyramidal dysfunction, as these features suggest the more serious multiple system atrophy.
Autoimmune autonomic ganglionopathy
Primary autonomic failure
Neurogenic inflammation
Visual pathway lesions
Small fiber peripheral neuropathy
Lower motor neuron lesion
Functional neurologic disorder
Upper motor neuron lesion