PMID- 20518898 OWN - NLM STAT- MEDLINE DCOM- 20100902 LR - 20171116 IS - 1440-1827 (Electronic) IS - 1320-5463 (Linking) VI - 60 IP - 6 DP - 2010 Jun TI - Regression of rectal mucosa-associated lymphoid tissue (MALT) lymphoma after antibiotic treatments. PG - 438-42 LID - 10.1111/j.1440-1827.2010.02538.x [doi] AB - Only a few reports have described regression of rectal mucosa-associated lymphoid tissue (MALT) lymphoma after antibiotic treatment are generally found to be successful for gastric tumors. We examined eight rectal MALT lymphomas treated with antibiotic treatments to determine whether they regressed after treatment. We also discuss the relationship between rectal MALT lymphomas and MALT1 gene genetic abnormalities. Eight patients who had undergone antibiotic treatments were followed up with colonoscopy after initiation of the treatment. In five of the eight cases (63%) endoscopic examination showed that the rectal tumor had disappeared, which was confirmed histologically. Polymerase chain reaction for immunoglobulin heavy chain identified a monoclonal band in seven of eight cases (88%). Of the eight cases analyzed with fluorescence in situ hybridization (FISH) for MALT1 translocation, two demonstrated MALT1 gene genetic abnormality. These cases tended to be resistant to antibiotic treatment. Investigation and analysis of a large number of rectal MALT lymphomas are needed to establish suitable standards for antibiotic treatment. FAU - Niino, Daisuke AU - Niino D AD - Department of Pathology, School of Medicine, Kurume University, Asahi-machi, Kurume, Japan. niino_daisuke@med.kurumeu.ac.jp FAU - Yamamoto, Kouhei AU - Yamamoto K FAU - Tsuruta, Osamu AU - Tsuruta O FAU - Maeda, Tomoharu AU - Maeda T FAU - Yakushijin, Yoshihiro AU - Yakushijin Y FAU - Aoki, Ryosuke AU - Aoki R FAU - Kimura, Yoshizo AU - Kimura Y FAU - Hashikawa, Keiko AU - Hashikawa K FAU - Kiyasu, Junichi AU - Kiyasu J FAU - Takeuchi, Masanori AU - Takeuchi M FAU - Sugita, Yasuo AU - Sugita Y FAU - Ohshima, Koichi AU - Ohshima K LA - eng PT - Journal Article PL - Australia TA - Pathol Int JT - Pathology international JID - 9431380 RN - 0 (Anti-Bacterial Agents) RN - 0 (Antineoplastic Agents) RN - 0 (Immunoglobulin Heavy Chains) RN - 0 (Neoplasm Proteins) RN - EC 3.4.22.- (Caspases) RN - EC 3.4.22.- (MALT1 protein, human) RN - EC 3.4.22.- (Mucosa-Associated Lymphoid Tissue Lymphoma Translocation 1 Protein) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Anti-Bacterial Agents/pharmacology/*therapeutic use MH - Antineoplastic Agents/pharmacology/*therapeutic use MH - Caspases/*genetics MH - Colonoscopy MH - Drug Resistance, Neoplasm/drug effects/genetics/immunology MH - Female MH - Gene Rearrangement MH - Humans MH - Immunoglobulin Heavy Chains/analysis/genetics MH - In Situ Hybridization, Fluorescence MH - Lymphoma, B-Cell, Marginal Zone/*drug therapy/genetics/pathology MH - Male MH - Middle Aged MH - Mucosa-Associated Lymphoid Tissue Lymphoma Translocation 1 Protein MH - Neoplasm Proteins/*genetics MH - Rectal Neoplasms/*drug therapy/genetics/pathology MH - Remission Induction MH - Translocation, Genetic EDAT- 2010/06/04 06:00 MHDA- 2010/09/03 06:00 CRDT- 2010/06/04 06:00 PHST- 2010/06/04 06:00 [entrez] PHST- 2010/06/04 06:00 [pubmed] PHST- 2010/09/03 06:00 [medline] AID - PIN2538 [pii] AID - 10.1111/j.1440-1827.2010.02538.x [doi] PST - ppublish SO - Pathol Int. 2010 Jun;60(6):438-42. doi: 10.1111/j.1440-1827.2010.02538.x.