Merck Manual

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Esophageal Dysmotility in Small Animals

By

Alice Defarges

, DVM, DACVIM, Department of Clinical Studies, Ontario Veterinary College, University of Guelph

Medically Reviewed Oct 2022

Young dogs may have a disorder of esophageal dysmotility without overt megaesophagus. Clinical signs can be similar to those of megaesophagus Dilatation of the Esophagus in Small Animals Megaesophagus may be due to a congenital defect or may be an adult-onset, acquired disorder. Congenital defects that may result in megaesophagus include: vascular ring anomalies esophageal diverticula... read more Dilatation of the Esophagus in Small Animals , although some dogs without clinical signs have abnormal motility during an esophagram. In one study in more than half the cases, the condition improved or resolved with age. Terrier breeds were overrepresented.

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