Megaesophagus
Achalasia is a disorder 7-Piece Dining Set of the primary motility of the esophagus characterized by insufficient relaxation of the lower part esophageal sphincter and absence of esophageal peristalsis, clinically it presents dysphagia for solids and liquids and "bird-beak" appearance on endoscopic and radiological studies.A 77-year-old man present