A Schatzki ring or Schatzki-Gary ring , a specific type of esophageal ring, is a narrowing of the lower part of the esophagus. The narrowing is caused by a ring of mucosal tissue (which lines the esophagus) or muscular tissue. Patients with Schatzki rings can develop intermittent dysphagia (difficulty swallowing), or, more seriously, a completely blocked esophagus. Scientifically accurate. Great for school science (biology) lab, doctor offices, clinic, hospital,... for educational purposes. Vector file scalable to any size without losing resolution. Check out my store for more medical illustration, both serious and fun stuffs. All images are made by myself, a scientist. If you cant find what you need here, just drop me a comment.