A report on Esophageal achalasia and Megaesophagus

A chest X-ray showing achalasia ( arrows point to the outline of the massively dilated esophagus )
Chagas megaseophagus
Transhiatal oesophagectomy specimen from a patient suffering from late-stage achalasia. Diverticulum at the left lower end of the oesophagus.
An x-ray of the thorax of a dog with megaoesophagus. The edges of the esophagus are shown by the yellow arrows. (In this image, the head end of the dog is to the right, and the tail end is to the left
An axial CT image showing marked dilatation of the esophagus in a person with achalasia.
The apparatus for management of the dog's megaesophagus can be simply made from a regular chair turned upside down. Some soft material to protect the back and chest of the dog may be used.
"Bird's beak" appearance and "megaesophagus", typical in achalasia.
Schematic of manometry in achalasia showing aperistaltic contractions, increased intraesophageal pressure, and failure of relaxation of the lower esophageal sphincter.
Image of a stomach which has undergone Fundoplomy

Megaesophagus may occur secondary to diseases such as achalasia or Chagas disease.

- Megaesophagus

At such a stage, upon swallowing food, it entirely remains in the esophagus, building up and stretching it to an extreme size in a phenomenon known as Megaesophagus.

- Esophageal achalasia
A chest X-ray showing achalasia ( arrows point to the outline of the massively dilated esophagus )

1 related topic with Alpha

Overall
The digestive tract, with the esophagus marked in red

Esophagus

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Organ in vertebrates through which food passes, aided by peristaltic contractions, from the pharynx to the stomach.

Organ in vertebrates through which food passes, aided by peristaltic contractions, from the pharynx to the stomach.

The digestive tract, with the esophagus marked in red
The esophagus is constricted in three places.
A mass seen during an endoscopy and an ultrasound of the mass conducted during the endoscopy session.

Achalasia refers to a failure of the lower esophageal sphincter to relax properly, and generally develops later in life.

This leads to progressive enlargement of the esophagus, and possibly eventual megaesophagus.