MEGAESOPHAGUS AND HYPOMOTILITY ASSOCIATED WITH ESOPHAGEAL LEIOMYOMA IN A DOG

Esophageal leiomyoma was diagnosed in an 11-year-old, male rottweiller with a history of chronic, intermittent regurgitation and weight loss . Esophagoscopy and survey and contrast radiography confirmed the pres ence of a distal esophageal mass with associated megaesophagus. Surgic al excision of the tumor and enteral feeding via gastrostomy tube fail ed to resolve the dog's clinical signs. Esophageal neoplasia in the do g is rare. Clinical signs of esophageal dysfunction, such as regurgita tion, are more common and are attributable to mechanical obstruction, disturbances in esophageal motility, or both. Canine, primary esophage al neoplasia generally warrants a guarded to poor prognosis.