Author:
Wang Ziyao,Kimura Shoichi,Iwasaki Hiromi,Takase Ken,Oshiro Yumi,Gamachi Ayako,Makihara Kosuke,Ogata Masao,Daa Tsutomu,Momosaki Seiya,Takamatsu Yasushi,Takeshita Morishige
Abstract
Abstract
Background
Systemic Epstein-Barr virus+ T-cell lymphoma (sEBV+ TCL) occurs in childhood and young adults, and is exceptionally rare in older adults.
Methods
We investigated clinicopathological features in 16 patients of various ages with systemic EBV+ CD8+ T-lymphoproliferative diseases.
Results
Eight younger patients and four of eight older adults had sEBV+ CD8+ TCL, with invasion by medium-sized to/or large atypical lymphocytes primarily in bone marrow and lymph nodes, hemophagocytic lymphohistiocytosis (HLH), and progressive clinicopathological course. A further two patients demonstrated EBV+ node-based CD8+ large TCL without HLH, while the remaining two had the systemic form of chronic active EBV infection (sCAEBV) with CD8+ small lymphocytes. Past history of sCAEBV-like lesions was observed in one sEBV+ TCL patient (8.3%). Immunohistologically, in 12 sEBV+ TCL patients, atypical lymphocytes were positive for phosphate signal transducer and activator of transcription 3 (66.7%), CMYC (83.3%), and p53 (75%). Strong reactions of programmed cell death-ligand (PD-L)1+ tumor or non-neoplastic cells were detected in nine sEBV+ TCL patients (75%). Clonal peaks of the T-cell receptor (TCR) γ gene were detected in eight sEBV+ TCL patients by polymerase chain reaction. Four younger patients in sEBV+ TCL (33.3%) are in remission with chemotherapies including etoposide, and three of the four underwent allogeneic stem cell transplantation (SCT).
Conclusion
sEBV+ CD8+ TCL was observed in younger and older adults with less history of sCAEBV. HLH, tumor cell atypia, immunohistological findings, and progressive clinical course were characteristic of sEBV+ CD8+ TCL. Prompt chemotherapy and SCT induced tumor regression in sEBV+ CD8+ TCL patients.
Publisher
Springer Science and Business Media LLC
Subject
General Medicine,Histology,Pathology and Forensic Medicine
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