Compendium of Cancer Genome Aberrations

HAEM5:Systemic EBV-positive T-cell lymphoma of childhood: Difference between revisions

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==Individual Region Genomic Gain/Loss/LOH==
==Individual Region Genomic Gain/Loss/LOH==


* Cytogenetic abnormalities found in 30-35% of cases of SEBVTCL of childhood. The WHO 5th edition and International Consensus Classification note that cytogenetic abnormalities favor a diagnosis of SEBVTCL over EBV-positive nonfamilial HLH.<ref>Arber DA, Borowitz MJ, Cook JR, et al. ''The International Consensus Classification of Myeloid and Lymphoid Neoplasms''.; 2025.</ref> <ref name=":3" /><ref name=":6" /><ref name=":10" />
* Cytogenetic abnormalities found in 30-35% of cases of SEBVTCL of childhood. The WHO 5th edition and International Consensus Classification note that cytogenetic abnormalities favor a diagnosis of SEBVTCL over EBV-positive nonfamilial HLH.<ref name=":0">Arber DA, Borowitz MJ, Cook JR, et al. ''The International Consensus Classification of Myeloid and Lymphoid Neoplasms''.; 2025.</ref> <ref name=":3" /><ref name=":6" /><ref name=":10" />
* No observable patterns in the cytogenetic/karyotypic abnormalities to-date; cytogenetic abnormalities associated with worse prognosis<ref name=":7" /><ref name=":5">{{Cite journal|last=Hue|first=Susan Swee-Shan|last2=Oon|first2=Ming Liang|last3=Wang|first3=Shi|last4=Tan|first4=Soo-Yong|last5=Ng|first5=Siok-Bian|date=2020-01|title=Epstein-Barr virus-associated T- and NK-cell lymphoproliferative diseases: an update and diagnostic approach|url=https://pubmed.ncbi.nlm.nih.gov/31767131|journal=Pathology|volume=52|issue=1|pages=111–127|doi=10.1016/j.pathol.2019.09.011|issn=1465-3931|pmid=31767131}}</ref><ref name=":9">{{Cite journal|last=Smith|first=Megan C.|last2=Cohen|first2=Daniel N.|last3=Greig|first3=Bruce|last4=Yenamandra|first4=Ashwini|last5=Vnencak-Jones|first5=Cindy|last6=Thompson|first6=Mary Ann|last7=Kim|first7=Annette S.|date=2014|title=The ambiguous boundary between EBV-related hemophagocytic lymphohistiocytosis and systemic EBV-driven T cell lymphoproliferative disorder|url=https://pubmed.ncbi.nlm.nih.gov/25337215|journal=International Journal of Clinical and Experimental Pathology|volume=7|issue=9|pages=5738–5749|issn=1936-2625|pmc=4203186|pmid=25337215}}</ref><ref>{{Cite journal|last=Chen|first=J. S.|last2=Tzeng|first2=C. C.|last3=Tsao|first3=C. J.|last4=Su|first4=W. C.|last5=Chen|first5=T. Y.|last6=Jung|first6=Y. C.|last7=Su|first7=I. J.|date=1997-09|title=Clonal karyotype abnormalities in EBV-associated hemophagocytic syndrome|url=https://pubmed.ncbi.nlm.nih.gov/9407723|journal=Haematologica|volume=82|issue=5|pages=572–576|issn=0390-6078|pmid=9407723}}</ref>
* No observable patterns in the cytogenetic/karyotypic abnormalities to-date; cytogenetic abnormalities associated with worse prognosis<ref name=":7" /><ref name=":5">{{Cite journal|last=Hue|first=Susan Swee-Shan|last2=Oon|first2=Ming Liang|last3=Wang|first3=Shi|last4=Tan|first4=Soo-Yong|last5=Ng|first5=Siok-Bian|date=2020-01|title=Epstein-Barr virus-associated T- and NK-cell lymphoproliferative diseases: an update and diagnostic approach|url=https://pubmed.ncbi.nlm.nih.gov/31767131|journal=Pathology|volume=52|issue=1|pages=111–127|doi=10.1016/j.pathol.2019.09.011|issn=1465-3931|pmid=31767131}}</ref><ref name=":9">{{Cite journal|last=Smith|first=Megan C.|last2=Cohen|first2=Daniel N.|last3=Greig|first3=Bruce|last4=Yenamandra|first4=Ashwini|last5=Vnencak-Jones|first5=Cindy|last6=Thompson|first6=Mary Ann|last7=Kim|first7=Annette S.|date=2014|title=The ambiguous boundary between EBV-related hemophagocytic lymphohistiocytosis and systemic EBV-driven T cell lymphoproliferative disorder|url=https://pubmed.ncbi.nlm.nih.gov/25337215|journal=International Journal of Clinical and Experimental Pathology|volume=7|issue=9|pages=5738–5749|issn=1936-2625|pmc=4203186|pmid=25337215}}</ref><ref>{{Cite journal|last=Chen|first=J. S.|last2=Tzeng|first2=C. C.|last3=Tsao|first3=C. J.|last4=Su|first4=W. C.|last5=Chen|first5=T. Y.|last6=Jung|first6=Y. C.|last7=Su|first7=I. J.|date=1997-09|title=Clonal karyotype abnormalities in EBV-associated hemophagocytic syndrome|url=https://pubmed.ncbi.nlm.nih.gov/9407723|journal=Haematologica|volume=82|issue=5|pages=572–576|issn=0390-6078|pmid=9407723}}</ref>
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== Additional Information ==
== Additional Information ==
Typically occurs following primary acute EBV infection; though, it rarely reported in patients with a history of systemic chronic active EBV (CAEBV)<ref name=":10" /><center>


* <center>
* Typically occurs following primary acute EBV infection; though, it rarely reported in patients with a history of systemic chronic active EBV (CAEBV)<ref name=":10" />
 
* All cases analyzed carry type A EBV with the wildtype or 30 bp deleted product of ''LMP1''<ref name=":1" /><ref name=":4">{{Cite journal|last=Suzuki|first=Keiko|last2=Ohshima|first2=Koichi|last3=Karube|first3=Kennosuke|last4=Suzumiya|first4=Junji|last5=Ohga|first5=Shouichi|last6=Ishihara|first6=Shigehiko|last7=Tamura|first7=Kazuo|last8=Kikuchi|first8=Masahiro|date=2004-05|title=Clinicopathological states of Epstein-Barr virus-associated T/NK-cell lymphoproliferative disorders (severe chronic active EBV infection) of children and young adults|url=https://pubmed.ncbi.nlm.nih.gov/15067338|journal=International Journal of Oncology|volume=24|issue=5|pages=1165–1174|issn=1019-6439|pmid=15067338}}</ref><ref name=":8">{{Cite journal|last=Kasahara|first=Y.|last2=Yachie|first2=A.|last3=Takei|first3=K.|last4=Kanegane|first4=C.|last5=Okada|first5=K.|last6=Ohta|first6=K.|last7=Seki|first7=H.|last8=Igarashi|first8=N.|last9=Maruhashi|first9=K.|date=2001-09-15|title=Differential cellular targets of Epstein-Barr virus (EBV) infection between acute EBV-associated hemophagocytic lymphohistiocytosis and chronic active EBV infection|url=https://pubmed.ncbi.nlm.nih.gov/11535525|journal=Blood|volume=98|issue=6|pages=1882–1888|doi=10.1182/blood.v98.6.1882|issn=0006-4971|pmid=11535525}}</ref>
 
* Differential Diagnosis with EBV-positive HLH is challenging
 
** TCR-gene rearrangements and aberrant T-cell phenotypes can be seen in both SEBVTCL of childhood and EBV-positive HLH
 
** The WHO 5th edition and International Consensus Classification note that cytogenetic abnormalities favor a diagnosis of SEBVTCL over EBV-positive nonfamilial HLH.<ref name=":3" /><ref name=":0" />
 
** Primary/familial EBV-positive HLH can be excluded by family history and genetic analysis<ref name=":10" />
All cases analyzed carry type A EBV with the wildtype or 30 bp deleted product of ''LMP1''<ref name=":1" /><ref name=":4">{{Cite journal|last=Suzuki|first=Keiko|last2=Ohshima|first2=Koichi|last3=Karube|first3=Kennosuke|last4=Suzumiya|first4=Junji|last5=Ohga|first5=Shouichi|last6=Ishihara|first6=Shigehiko|last7=Tamura|first7=Kazuo|last8=Kikuchi|first8=Masahiro|date=2004-05|title=Clinicopathological states of Epstein-Barr virus-associated T/NK-cell lymphoproliferative disorders (severe chronic active EBV infection) of children and young adults|url=https://pubmed.ncbi.nlm.nih.gov/15067338|journal=International Journal of Oncology|volume=24|issue=5|pages=1165–1174|issn=1019-6439|pmid=15067338}}</ref><ref name=":8">{{Cite journal|last=Kasahara|first=Y.|last2=Yachie|first2=A.|last3=Takei|first3=K.|last4=Kanegane|first4=C.|last5=Okada|first5=K.|last6=Ohta|first6=K.|last7=Seki|first7=H.|last8=Igarashi|first8=N.|last9=Maruhashi|first9=K.|date=2001-09-15|title=Differential cellular targets of Epstein-Barr virus (EBV) infection between acute EBV-associated hemophagocytic lymphohistiocytosis and chronic active EBV infection|url=https://pubmed.ncbi.nlm.nih.gov/11535525|journal=Blood|volume=98|issue=6|pages=1882–1888|doi=10.1182/blood.v98.6.1882|issn=0006-4971|pmid=11535525}}</ref>
 
Differential Diagnosis<ref>{{Cite journal|last=Montes-Mojarro|first=Ivonne A.|last2=Kim|first2=Wook Youn|last3=Fend|first3=Falko|last4=Quintanilla-Martinez|first4=Leticia|date=2020-01|title=Epstein - Barr virus positive T and NK-cell lymphoproliferations: Morphological features and differential diagnosis|url=https://pubmed.ncbi.nlm.nih.gov/31889602|journal=Seminars in Diagnostic Pathology|volume=37|issue=1|pages=32–46|doi=10.1053/j.semdp.2019.12.004|issn=0740-2570|pmid=31889602}}</ref><ref>{{Cite journal|last=Cohen|first=Jeffrey I.|last2=Iwatsuki|first2=Keiji|last3=Ko|first3=Young-Hyeh|last4=Kimura|first4=Hiroshi|last5=Manoli|first5=Irini|last6=Ohshima|first6=Koichi|last7=Pittaluga|first7=Stefania|last8=Quintanilla-Martinez|first8=Leticia|last9=Jaffe|first9=Elaine S.|date=04 2020|title=Epstein-Barr virus NK and T cell lymphoproliferative disease: report of a 2018 international meeting|url=https://pubmed.ncbi.nlm.nih.gov/31833428|journal=Leukemia & Lymphoma|volume=61|issue=4|pages=808–819|doi=10.1080/10428194.2019.1699080|issn=1029-2403|pmid=31833428}}</ref>
 
*Clinical and pathologic features of EBV-HLH and systemic EBV positive T-cell lymphoma of childhood overlap. These entities have been suggested to represent a biologic continuum
*EBV-HLH is defined by a constellation of clinical symptoms and laboratory changes that might be triggered by EBV-associated lymphomas including aggressive NK-cell leukemia (ANKL) and systemic EBV-positive T-cell lymphoma of childhood
*EBV-HLH associated with genetic abnormalities (primary HLH) can be excluded by genetic analysis and family history
*Systemic CAEBV infection is difficult to differentiate from systemic EBV-positive T-cell lymphoma based only on morphologic grounds. The clinical information is necessary to achieve the correct diagnosis
*ANKL is very similar to systemic EBV-positive T-cell lymphoma but the tumor cells express NK cell markers (CD56+) and do not show monoclonal TCR gene rearrangements
 
Additional Information<ref name=":9" /><ref>{{Cite journal|last=Kimura|first=Hiroshi|last2=Ito|first2=Yoshinori|last3=Kawabe|first3=Shinji|last4=Gotoh|first4=Kensei|last5=Takahashi|first5=Yoshiyuki|last6=Kojima|first6=Seiji|last7=Naoe|first7=Tomoki|last8=Esaki|first8=Shinichi|last9=Kikuta|first9=Atsushi|date=2012-01-19|title=EBV-associated T/NK-cell lymphoproliferative diseases in nonimmunocompromised hosts: prospective analysis of 108 cases|url=https://pubmed.ncbi.nlm.nih.gov/22096243|journal=Blood|volume=119|issue=3|pages=673–686|doi=10.1182/blood-2011-10-381921|issn=1528-0020|pmid=22096243}}</ref><ref>{{Cite journal|last=Yoshida|first=Masanori|last2=Osumi|first2=Tomoo|last3=Imadome|first3=Ken-Ichi|last4=Tomizawa|first4=Daisuke|last5=Kato|first5=Motohiro|last6=Miyazawa|first6=Noritaka|last7=Ito|first7=Reiko|last8=Nakazawa|first8=Atsuko|last9=Matsumoto|first9=Kimikazu|date=03 2018|title=Successful treatment of systemic EBV positive T-cell lymphoma of childhood using the SMILE regimen|url=https://pubmed.ncbi.nlm.nih.gov/29648917|journal=Pediatric Hematology and Oncology|volume=35|issue=2|pages=121–124|doi=10.1080/08880018.2018.1459982|issn=1521-0669|pmid=29648917}}</ref>
 
*Poor outcomes overall due to cytokine storm in HLH
*Survival rates lower with disease onset after 8 years and with liver dysfunction at diagnosis
*Death due to rapid disease progression for which there is no effective treatment
*No known treatment; some case reports of response to etoposide and dexamethasone-based regimen followed by allogenic hematopoietic stem cell transplantation


== Links ==
== Links ==
[[HAEM4:EBV-Positive T-cell and NK-cell Lymphoproliferative Diseases of Childhood]]<center>
[[HAEM4:EBV-Positive T-cell and NK-cell Lymphoproliferative Diseases of Childhood]]<center><center>
 




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