Nutcracker esophagus

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Science and technology

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What Wikipedia says

Nutcracker esophagus, jackhammer esophagus, or hypercontractile peristalsis, is a disorder of the movement of the esophagus characterized by contractions in the smooth muscle of the esophagus in a normal sequence but at an excessive amplitude or duration.

Excerpt from the Wikipedia article “Nutcracker esophagus”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Dieter Menne (http://www.menne-biomed.de/swallow/jswallow3d.php), Public domain, via Wikimedia Commons.