megaesophagus

Etiology

• Chaga's disease
• achalasia

Pathology

• loss of ganglion cells of the myenteric plexus
• the esophagus is enlarged
• peristalsis fails to occur properly
• persistent contraction of the lower esophageal sphincter

Clinical manifestations

• dysphagia

Radiology

• barium swallow

More general terms

• esophageal disease