{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,2]],"date-time":"2025-11-02T05:22:02Z","timestamp":1762060922764,"version":"build-2065373602"},"reference-count":7,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2022,8,10]],"date-time":"2022-08-10T00:00:00Z","timestamp":1660089600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Diagnostics"],"abstract":"<jats:p>The endoscopic findings of diffuse large B cell lymphoma have various presentations. In our case, the patient had developed multiple elevated central ulceration lesions, and the peripheral elevated portion had a heaped-up margin. The margin had a sharp, smooth edge that was not infiltrative and could be confused with a simple gastric ulcer. Endoscopists should be aware of the possibility of multiple lymphoma ulcers with heaped-up margins. We present some unusual endoscopic features of lymphoma, which are easily misdiagnosed as gastric ulcers.<\/jats:p>","DOI":"10.3390\/diagnostics12081929","type":"journal-article","created":{"date-parts":[[2022,8,10]],"date-time":"2022-08-10T04:20:32Z","timestamp":1660105232000},"page":"1929","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["A Differential Diagnosis of Unusual Gastric Ulcer"],"prefix":"10.3390","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4234-9270","authenticated-orcid":false,"given":"Soo-Yoon","family":"Sung","sequence":"first","affiliation":[{"name":"Department of Radiation Oncology, Eunpyeong St. Mary\u2019s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0187-3842","authenticated-orcid":false,"given":"Hyun Ho","family":"Choi","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine, Uijeongbu St. Mary\u2019s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1908-9696","authenticated-orcid":false,"given":"Kyung Jin","family":"Seo","sequence":"additional","affiliation":[{"name":"Department of Hospital Pathology, Uijeongbu St. Mary\u2019s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,8,10]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"114","DOI":"10.7180\/kmj.2020.35.2.114","article-title":"Differences in Endoscopic Findings of Primary and Secondary Gastric Lymphoma","volume":"35","author":"Jung","year":"2020","journal-title":"Kosin Med. J."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"721","DOI":"10.1111\/j.1365-2036.2006.02826.x","article-title":"Clinical and endoscopic presentation of primary gastric lymphoma: A multicentre study","volume":"23","author":"Andriani","year":"2006","journal-title":"Aliment. Pharmacol. Ther."},{"key":"ref_3","doi-asserted-by":"crossref","unstructured":"Wu, C.H., Gau, J.P., Teng, C.J., Shih, Y.H., Su, Y.C., Wang, R.C., and Chen, T.C. (2022). Clinical Features and Immunophenotypes of Double-Hit Diffuse Large B-Cell Lymphoma. Diagnostics, 12.","DOI":"10.21203\/rs.3.rs-1275790\/v1"},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"85","DOI":"10.1186\/s12957-016-0821-9","article-title":"Anatomic distribution, clinical features, and survival data of 87 cases primary gastrointestinal lymphoma","volume":"14","author":"Ge","year":"2016","journal-title":"World J. Surg. 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