Figure 2 - Esophageal manometric findings in achalasia.
From the following article
Pathophysiology of achalasia and diffuse esophageal spasm
Ikuo Hirano
GI Motility online (2006)
doi:10.1038/gimo22
The tracing illustrates the findings in classic achalasia with esophageal body aperistalsis with low-amplitude simultaneous esophageal body contractions and failed relaxation of the lower esophageal sphincter.
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