PMID- 37380468 OWN - NLM STAT- MEDLINE DCOM- 20230630 LR - 20230811 IS - 1880-9952 (Electronic) IS - 1346-4280 (Print) IS - 1346-4280 (Linking) VI - 63 IP - 2 DP - 2023 TI - High-grade B-cell lymphoma with 11q aberrations: A single-center study. PG - 121-131 LID - 10.3960/jslrt.23007 [doi] AB - High-grade B-cell lymphoma with 11q aberrations (HGBL-11q) has been classified for the first time as a high-grade mature B-cell neoplasm according to the 5th edition of the World Health Organization Classification of Tumors of Hematopoietic and Lymphoid Tissues. HGBL-11q is morphologically and immunohistochemically similar to Burkitt lymphoma (BL) or HGBL; it is characterized by gain in the 11q23.2-11q23.3 region and loss in the 11q24.1-qter region but it lacks MYC translocation. HGBL-11q is a rare tumor, and its exact frequency in Japan remains unclear. In this study, we classified 113 Germinal center B-cell (GCB) type aggressive B-cell lymphomas (BCLs), which were divided into BL, high-grade (HG), and large cell (LC) morphologies. We performed fluorescence in situ hybridization (FISH) to identify 11q aberrations. Nine patients had 11q aberrations (7.96%, 9/113), including six HGBL-11q. The age range was from 8 to 87 years, and all were male. Six out of 14 patients with HG morphology were diagnosed with HGBL-11q (6/14, 42.9%). HGBL-11q has been found to occur primarily in children and young adults but also in middle-aged and older adults. Patients with HG morphology without MYC translocation should undergo FISH for 11q aberrations regardless of age. However, the pathogenesis, clinical findings, and prognosis of HGBL-11q remain unclear. The accumulation of cases with an accurate HGBL-11q diagnosis in daily practice and accurate and detailed data on HGBL-11q will contribute to further understanding of 11q aberrations. FAU - Yamada, Shoki AU - Yamada S AD - Department of Diagnostic Pathology, Fukushima Medical University School of Medicine, Fukushima, Japan. FAU - Oka, Yuka AU - Oka Y AD - Department of Diagnostic Pathology, Fukushima Medical University School of Medicine, Fukushima, Japan. FAU - Muramatsu, Moe AU - Muramatsu M AD - Department of Diagnostic Pathology, Fukushima Medical University School of Medicine, Fukushima, Japan. FAU - Hashimoto, Yuko AU - Hashimoto Y AD - Department of Diagnostic Pathology, Fukushima Medical University School of Medicine, Fukushima, Japan. LA - eng PT - Journal Article PL - Japan TA - J Clin Exp Hematop JT - Journal of clinical and experimental hematopathology : JCEH JID - 101141257 SB - IM MH - Male MH - Humans MH - Female MH - In Situ Hybridization, Fluorescence MH - *Chromosome Aberrations MH - *Burkitt Lymphoma/diagnosis/genetics MH - Translocation, Genetic MH - Japan PMC - PMC10410621 OTO - NOTNLM OT - 11q aberrations OT - fluorescence in situ hybridization OT - high-grade B-cell lymphoma COIS- CONFLICT OF INTEREST The authors declare that they have no conflict of interest. EDAT- 2023/06/29 01:08 MHDA- 2023/06/30 06:42 PMCR- 2023/06/28 CRDT- 2023/06/28 21:53 PHST- 2023/06/30 06:42 [medline] PHST- 2023/06/29 01:08 [pubmed] PHST- 2023/06/28 21:53 [entrez] PHST- 2023/06/28 00:00 [pmc-release] AID - 23007 [pii] AID - 10.3960/jslrt.23007 [doi] PST - ppublish SO - J Clin Exp Hematop. 2023;63(2):121-131. doi: 10.3960/jslrt.23007.