DETERMINATION OF A COMMON CLONAL ORIGIN OF GASTRIC AND PULMONARY MUCOSA-ASSOCIATED LYMPHOID-TISSUE LYMPHOMAS PRESENTING 5 YEARS APART

被引:22
作者
KAWAMATA, N
MIKI, T
FUKUDA, T
SUZUKI, K
SUMI, Y
OHDAMA, S
HIROSAWA, S
MATSUBARA, O
KAMIYAMA, R
AOKI, N
机构
[1] First Department of Internal Medicine, Tokyo
[2] Second Division of Pathology, Tokyo
[3] School of Allied Health Sciences, Tokyo Medical and Dental University, Tokyo
关键词
REACTIVE LYMPHOID HYPERPLASIA; POLYMERASE CHAIN REACTION; COMPLEMENTARITY-DETERMINING REGION 3;
D O I
10.2169/internalmedicine.34.220
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Mucosa-associated lymphoid tissue (MALT) lymphoma is often mis-diagnosed as a benign tumor. Dissemination to other sites occurs in MALT lymphoma. We report a 60-year-old man with gastric and pulmonary tumors of MALT lymphoma which occurred 5 years apart. Initially, the gastric tumor had been diagnosed as reactive lymphoreticular hyperplasia. To determine whether the two tumors arose from the same malignant clone, we amplified and sequenced the complementarity-determining region 3 of the immunoglobulin heavy chain gene using the polymerase chain reaction (PCR). The sequences were identical except for 11-nucleotide difference, suggesting identical clonality.
引用
收藏
页码:220 / 223
页数:4
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