PMID- 32534365 OWN - NLM STAT- MEDLINE DCOM- 20201104 LR - 20201104 IS - 1873-5835 (Electronic) IS - 0145-2126 (Linking) VI - 95 DP - 2020 Aug TI - t(3;14)(p14.1;q32)/FOXP1-IGH translocation in thyroid extranodal marginal zone lymphoma of mucosa-associated lymphoid tissue (MALT lymphoma). PG - 106399 LID - S0145-2126(20)30104-1 [pii] LID - 10.1016/j.leukres.2020.106399 [doi] AB - OBJECTIVES: MALT lymphoma occurs in various organs and has several characteristic genetic aberrations. Thyroid MALT lymphoma has been reported to include t(3;14)(p14.1;q32)/FOXP1-IGH as a specific genetic aberration, but the number of studies is limited. METHOD AND RESULTS: We examined 86 thyroid lymphoma cases using fluorescence in situ hybridization (FISH) for the detection of t(3;14)/FOXP1-IGH in formalin fixed paraffin-embedded tissue (FFPE). Histopathological diagnoses of the analyzed specimen were as follows: thyroid MALT lymphoma (n = 59), DLBCL (n = 23), follicular lymphoma (n = 4), and benign lesions (n = 14) included Hashimoto's thyroiditis (n = 13) and other (n = 1). Of the 100 analyzed cases, thirty-six (36 %) thyroid lymphoma cases were positive for t(3;14)/FOXP1-IGH. Thirty-three (55.9 %) of the 59 MALT lymphoma cases were positive for t(3;14)/FOXP1-IGH. Three (13.0 %) of the 23 DLBCL cases were positive for t(3;14)/FOXP1-IGH. All 4 follicular lymphomas examined were negative for t(3;14)/FOXP1-IGH. None of the benign cases was positive for t(3;14)/FOXP1-IGH, including Hashimoto's thyroiditis (0/13) and benign tissue (0/1). CONCLUSIONS: Our study found that t(3;14)/FOXP1-IGH was frequently found in thyroid MALT lymphoma. A detection of t(3;14)/FOXP1-IGH is extremely useful for the differential diagnosis between primary MALT lymphoma of the thyroid and other thyroid disorders. CI - Copyright (c) 2020 Elsevier Ltd. All rights reserved. FAU - Sasaki, Yosuke AU - Sasaki Y AD - Department of Pathology, Showa University School of Medicine, Japan. Electronic address: sasaki0224@med.showa-u.ac.jp. FAU - Shiozawa, Eisuke AU - Shiozawa E AD - Department of Pathology, Showa University School of Medicine, Japan. FAU - Watanabe, Natsuko AU - Watanabe N AD - Ito Hospital, Japan. FAU - Homma, Mayumi AU - Homma M AD - Department of Pathology, Showa University School of Medicine, Japan. FAU - Noh, Jaeduk Yoshimura AU - Noh JY AD - Ito Hospital, Japan. FAU - Ito, Koichi AU - Ito K AD - Ito Hospital, Japan. FAU - Takimoto, Masafumi AU - Takimoto M AD - Department of Pathology, Showa University School of Medicine, Japan. FAU - Yamochi-Onizuka, Toshiko AU - Yamochi-Onizuka T AD - Department of Pathology, Showa University School of Medicine, Japan. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20200602 PL - England TA - Leuk Res JT - Leukemia research JID - 7706787 RN - 0 (FOXP1 protein, human) RN - 0 (Forkhead Transcription Factors) RN - 0 (Repressor Proteins) SB - IM MH - Adult MH - Aged MH - Female MH - Forkhead Transcription Factors/*genetics MH - Genes, Immunoglobulin Heavy Chain/*genetics MH - Humans MH - Lymphoma, B-Cell, Marginal Zone/*genetics MH - Male MH - Middle Aged MH - Oncogene Fusion/*genetics MH - Repressor Proteins/*genetics MH - Thyroid Neoplasms/*genetics MH - Translocation, Genetic OTO - NOTNLM OT - Chromosomal translocation OT - FOXP1 OT - MALT lymphoma OT - Thyroid lymphoma OT - t(3;14)(p14.1;q32)/FOXP1-IGH EDAT- 2020/06/14 06:00 MHDA- 2020/11/05 06:00 CRDT- 2020/06/14 06:00 PHST- 2020/04/11 00:00 [received] PHST- 2020/05/28 00:00 [revised] PHST- 2020/05/30 00:00 [accepted] PHST- 2020/06/14 06:00 [pubmed] PHST- 2020/11/05 06:00 [medline] PHST- 2020/06/14 06:00 [entrez] AID - S0145-2126(20)30104-1 [pii] AID - 10.1016/j.leukres.2020.106399 [doi] PST - ppublish SO - Leuk Res. 2020 Aug;95:106399. doi: 10.1016/j.leukres.2020.106399. Epub 2020 Jun 2.