Reversible megaoesophagus in a dog with isolated glucocorticoid-deficient hypoadrenocorticism
Keyword(s):
An eight-year-old, female, neutered labradoodle was presented for investigation of a three-week history of lethargy and regurgitation. Two sets of conscious thoracic radiographs, performed approximately two weeks apart, revealed the presence of megaoesophagus. Serum cortisol concentration (pre-adrenocorticotrophic hormone (ACTH) and post-ACTH stimulation), serum aldosterone concentration post-ACTH stimulation and plasma endogenous ACTH concentration confirmed the diagnosis of isolated glucocorticoid-deficient hypoadrenocorticism. Following glucocorticoid supplementation, rapid resolution of the clinical signs was reported, and repeated conscious thoracic radiographs one week later showed complete resolution of the megaoesophagus.
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