megaesophagus


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megaesophagus

 [meg″ah-e-sof´ah-gus]
dilatation and muscular hypertrophy of most of the esophagus, above a constricted, often atrophied, distal segment. See also achalasia.

meg·a·e·soph·a·gus

(meg'ă-ē-sof'ă-gŭs, meg'ă-e-sof'),
Great enlargement of the lower portion of the esophagus, as seen in patients with achalasia and Chagas disease.

meg·a·e·soph·a·gus

(meg'ă-ĕ-sof'ă-gŭs)
Great enlargement of the lower portion of the esophagus, as seen in patients with achalasia and Chagas disease.
Synonym(s): mega-oesophagus.
References in periodicals archive ?
Sarah, from Middlesbrough, North Yorkshire, shared a clip of Doris' feeding time routine onFacebookwith the caption: "What life is like living with a pup called Doris who has Megaesophagus."
In animals, congenital megaesophagus and other congenital esophageal defects have been implicated as the underlying cause of GEI (1).
Based on the findings and clinical picture, the patient most likely suffered from megaesophagus (an end-stage dilated malfunctioning esophagus).
We present a case of megaesophagus associated with atelectasis of the right lung, which showed a typical of achalasia with a "bird's beak appearance".
Often, the result is megaesophagus, where the tube carrying food from the mouth to the stomach dilates and becomes flaccid, making swallowing ineffective.
In approximately 30% of cases, patients develop cardiac symptoms (associated with severe myocarditis), and in the remaining 10%, there is damage to the digestive system with infiltration of lymphocytes and neuronal degeneration, leading to the development of megacolon or megaesophagus [5].
Monty, a four-month-old Alaskan Malamute cross breed requires extra care as he suffers from a condition known as megaesophagus. His medical problem means that he needs a owner with patience.
Subsequent CT scan obtained, clearly demonstrated megaesophagus. UGI endoscopy demonstrated dilated esophagus in all cases with food stasis.
Another key part of her treatment plan is to avoid aspiration pneumonia secondary to megaesophagus (when the esophagus dilates from lack of muscle tone).
The remaining 10% suffer mainly from megacolon or megaesophagus. (2-4) Consequently, Chagas disease places an enormous burden on the economic resources of the countries affected and dramatically influences the patients' social and labor situation.
Indeed, between 20 to 30% of Chagas-infected individuals suffer from such diseases as cardiomyopathy (enlarged heart), arrhythmia (varied heart rate or rhythm), cardiac arrest, megacolon (enlarged colon) and megaesophagus (enlarged esophagus) (Bastien, 1998; CDC, 2009).