Ulcers are sores in the lining of the digestive tract. The
digestive tract consists of esophagus, stomach, duodenum (first part of the
intestines) and intestines. Most ulcers are located in the duodenum. These
ulcers are called duodenal ulcers. Ulcers located in the stomach are called
gastric ulcers. Ulcers in the esophagus are called esophageal ulcers.
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| lining of the digestive tract |
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