Congenital Megaesophagus In Cats. Feline dysautonomia feline dysautonomia is the most common cause of acquired feline megaesophagus recognized; Several months later the same cat, in poor physical condition, was presented with a palpable bulge along its ventral neck.
When acquired later on, megaesophagus may be the result of inflammation or a foreign body or tumor in the esophagus. Prognosis for congenital megaesophagus is guarded in general; Congenital megaesophagus is a condition that occurs in dogs at birth where the esophagus is lacking in muscle, leading to the dog regurgitating his food.
Megaesophagus may also occur in just a segment of the esophagus if there is an obstruction such as a swallowed foreign object, a tumor, a stricture (scar tissue) or if there is a vascular ring anomaly (a congenital abnormality of blood vessels around the esophagus).
Some congenital abnormalities of the esophagus seen in cats include megaesophagus, vascular ring anomalies, and cricopharyngeal achalasia (see table: Acquired secondary megaesophagus may develop in association with a number of other conditions. Causes of megaesophagus in cats. When acquired later on, megaesophagus may be the result of inflammation or a foreign body or tumor in the esophagus.