Fig. 2From: Peroral Endoscopic Myotomy (POEM) for the treatment of achalasia in an Egyptian cohortBarium esophagograms showing different types of achalasia with characteristic smooth tapering of their lower ends. A Showing dilated tortuous esophagus (sigmoid type) in a patient with type I achalasia. B Barium esophagogram of a patient with type II achalasia. C Barium esophagogram of a patient with type III achalasiaBack to article page