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Role of F-FDG PET Scans in Patients with Helicobacter pylori-Infected Gastric Low-Grade MALT Lymphoma

Authors
 Kyung Ho Song ; Mijin Yun ; Yong Chan Lee ; Jae Bock Chung ; Dae Ryong Kang ; Woo Ick Yang ; Jie-Hyun Kim 
Citation
 Gut and Liver, Vol.5(3) : 308~314, 2011 
Journal Title
 Gut and Liver 
ISSN
 1976-2283 
Issue Date
2011
Abstract
BACKGROUND/AIMS: Endoscopic ultrasound (EUS) plays a crucial role in the assessment and treatment of low-grade gastric mucosa-associated lymphoid tissue (MALT) lymphoma; however, interobserver variation, inadequate accuracy in judging the depth of tumor invasion, and histological heterogeneity of the tumor can limit its role. Thus, we have assessed the role of (18)F-FDG PET scans in the management of Helicobacter pylori-infected gastric MALT lymphoma. METHODS: Eighteen patients with H. pylori-infected low-grade gastric MALT lymphoma underwent an (18)F-FDG PET scan prior to receiving H. pylori eradication therapy. We analyzed these patients' clinicopathologic data and measured the baseline and change in the metabolic activity of the tumor using standardized uptake values (SUVs). RESULTS: Two patients failed to achieve complete remission of the low-grade gastric MALT lymphoma after successful H. pylori eradication. The baseline SUVs were significantly higher in these patients compared to successfully treated patients, 13.35±0.07 vs 2.98±0.93, respectively (n=2 vs n=16, p<0.001). The reduction in the SUV was significantly greater in the complete remission patients compared to treatment failure patients (p=0.018). CONCLUSIONS: A high SUV at baseline (18)F-FDG PET and a lower reduction in the SUV within 3 months after eradication therapy are associated with treatment failure in H. pylori-positive low-grade gastric MALT lymphoma patients undergoing eradication treatment.
URI
http://ir.ymlib.yonsei.ac.kr/handle/22282913/95270
DOI
10.5009/gnl.2011.5.3.308
Appears in Collections:
1. 연구논문 > 1. College of Medicine > Dept. of Internal Medicine
1. 연구논문 > 1. College of Medicine > Dept. of Pathology
1. 연구논문 > 1. College of Medicine > Dept. of Nuclear Medicine
1. 연구논문 > 1. College of Medicine > Dept. of Preventive Medicine
Yonsei Authors
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