Gastric inverted hyperplastic polyp: A rare cause of iron deficiency anemia
Jin Tak Yun1, Seung Woo Lee1, Dong Pil Kim1
1Jin Tak Yun, Seung Woo Lee, Dong Pil Kim, Seung Hwa Choi, Seok-Hwan Kim, Jun Kyu Park, Sun Hee Jang, Yun Jung Park, Ye Gyu Sung, Division of Gastroenterology, Department of Internal Medicine, College of Medicine, Daejeon St. Mary's Hospital, The Catholic University of Korea, Daejeon 301-723, South Korea.
Abstract:
Gastric inverted hyperplastic polyp (IHP) is a rare gastric polyp characterized by the downward growth of hyperplastic mucosal components into the submucosal layer. Macroscopically, a gastric IHP resembles a subepithelial tumor (SET); as a result, accurately diagnosing gastric IHP is difficult. This issue has clinical significance because gastric IHP can be misdiagnosed as SET or as malignant neoplasm In addition, adenocarcinoma can accompany benign gastric IHP. Although in most cases, gastric IHPs are asymptomatic and are found incidentally, these polyps may cause anemia secondary to chronic bleeding. Here, we report one case involving gastric IHP accompanied by chronic iron deficiency anemia that was successfully managed using endoscopic submucosal dissection.
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