Case Studies: Case ReportsDuodenal mucosa-associated lymphoid tissue lymphoma treated by eradication of Helicobacter pylori: Report of 2 cases including EUS findings☆
Section snippets
Case 1
A 65-year-old woman was admitted because of abdominal discomfort. Examination was negative for hepatosplenomegaly and lymphadenopathy. Laboratory data and imaging studies, including bone marrow aspiration, chest and abdominal CT, and gallium scintigraphy, were normal. Upper endoscopy disclosed irregular granular mucosa with mucosal defects in the anterior wall of the duodenal bulb (Fig. 1A).
Discussion
Primary malignant lymphoma of the duodenum is rare, accounting for only 2% to 4% of primary GI lymphomas15, 16 and 5% to 16% of small intestinal lymphomas.17, 18 Thirty-three reported cases of duodenal lymphoma were identified in English language publications.3, 4, 5, 6, 7, 8, 9, 10, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38 Among these cases, only 12 were specified as duodenal MALT lymphoma.3, 4, 5, 6, 7, 8, 9, 10 Endoscopic features of duodenal MALT
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Duodenal mucosa-associated lymphoid tissue lymphoma successfully treated by radiation therapy
2007, Clinical Lymphoma and MyelomaCatheter-probe-assisted endoluminal US
2004, Gastrointestinal EndoscopyCitation Excerpt :In a study of 17 patients with predominantly low-grade MALTomas, C-EUS imaging before and 6 months after Helicobacter pylori eradication was able to predict complete regression (sensitivity 90.9%, specificity 100%).96 Several case reports demonstrate that C-EUS can predict remission of MALTomas at other sites, including the duodenum97 and the colon. In the so-called “buried bumper syndrome” from percutaneous gastrostomy tubes migrating into the gastric wall, C-EUS may be beneficial in identifying the position of the internal bumper within the gastric wall to allow endoscopic extraction.98
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2019, Journal of Japanese Society of Gastroenterology
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Reprint requests: Shigeo Nakamura, MD, Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashi-ku, Fukuoka 812-8582, Japan.