Dysphagia and vomiting are frequently present in untreated Addison's d
isease. These non-specific symptoms may be due either to the metabolic
disorder and myopathy or to disorders associated with Addison's disea
se. We describe a patient with autoimmune adrenal failure as a feature
of autoimmune polyglandular syndrome (APS) type II. This patient was
referred initially because of megaoesophagus. The association of megao
esophagus with Addison's disease or any of the three types of APS has
not previously been described in humans. The association of megaoesoph
agus and adrenal failure, however, is known to occur in Allgrove's syn
drome, a disease with primary manifestation in childhood characterized
by adrenal failure, achalasia and alacrimia. Moreover, there are seve
ral reports on the association of megaoesophagus with adrenocortical i
nsufficiency and other autoimmune endocrine diseases in dogs. Vomiting
and dysphagia usually resolve with hormone substitution in patients w
ith isolated Addison's disease. In our patient these symptoms disappea
red in spite of the radiological persistence of megaoesophagus, which
might have been overlooked if the diagnosis of Addison's disease had b
een made earlier. The occurrence of megaoesophagus might be more commo
n than previously suspected and we suggest a systematic search for sim
ilar findings in other patients with autoimmune Addison's disease, eve
n when minor dysphagia is present.