The Role of Endoscopic Ultrasonography in Primary Gastric Lymphoma of MALT.
- Author:
Chung Ryul LEE
1
;
Young Suk CHO
;
Jae Youn CHEONG
;
Yong Chan LEE
;
Jae Bock CHUNG
;
Jae Yoon CHON
;
Young Myung MOON
;
Jin Kyung KANG
;
In Suh PARK
Author Information
1. Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.
- Publication Type:Original Article
- Keywords:
Mucosa-associated lymphoid tissue;
Lymphoma;
Helocobacter pylori;
Endoscopic ultrasonography
- MeSH:
Diagnosis;
Endosonography*;
Follow-Up Studies;
Helicobacter pylori;
Humans;
Lymph Nodes;
Lymphoid Tissue;
Lymphoma*;
Lymphoma, B-Cell, Marginal Zone;
Mucous Membrane;
Neoplasm Metastasis
- From:Korean Journal of Gastrointestinal Endoscopy
1999;19(6):869-877
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
BACKGROUND AND AIMS: Endoscopic ultrasonography (EUS) is a useful diagnostic method for diagnosing local invasion and lymph node metastasis of primary gastric lymphoma including mucosa-associated lymphoid tissue (MALT) lymphoma, but the role of follow-up EUS after histologic regression of MALT lymphoma has not been well established until now. Therefore the usefulness of EUS in initial and follow up studies after Helicobacter pylori eradication therapy was investigated. METHODS: From January 1995 to October 1998, nineteen MALT lymphoma patients were investigated. All but four patients underwent EUS exam at diagnosis and 3~23 months thereafter. 17 patients recieved H. pylori eradication therapy and 2 patients recieved operations without medical treatment. RESULTS: 16 of the 17 patients (94%) were cured of H. pylori infection after antimicrobial therapy. but on the histologic criteria, 13 of the 16 cases (81%) who were cured of H. pylori infection showed complete regression of MALT lymphoma. Histologic regression of MALT lymphoma was observed 6 weeks to 23 months after H. pylori eradication. In follow up EUS exam, gastric wall abnormalities returned to normal in 9 cases (69%) and remained abnormal in 4 cases (31%) among the completely regressed 13 cases. CONCLUSIONS: Considerable portion (31%) of follow up EUS exam showed persistent abnormalities of gastric wall such as thickening of mucosa and/or submucosa after histologic regression of MALT lymphoma. To evaluate the usefulness of EUS, follow up EUS exam with regular interval for longer periods after histologic regression is needed.
