HAEM5:B-lymphoblastic leukaemia/lymphoma with BCR::ABL1-like features: Difference between revisions

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|Chromosome X/Y abnormalities include either translocation of the immunoglobin heavy chain enhance locus into ''CRLF2'' (''IGH''::''CRLF2''—more commonly seen in adults) or a cryptic deletion involving the PAR1 psuedoautosomal region, resulting in fusion of ''CRLF2'' and ''P2RY8'' (more commonly seen in children); these alterations involving ''CRLF2'' have been associated with poor survival;<ref name=":7">{{Cite journal|last=Konoplev|first=Sergej|last2=Lu|first2=Xinyan|last3=Konopleva|first3=Marina|last4=Jain|first4=Nitin|last5=Ouyang|first5=Juan|last6=Goswami|first6=Maitrayee|last7=Roberts|first7=Kathryn G.|last8=Valentine|first8=Marc|last9=Mullighan|first9=Charles G.|date=2017|title=CRLF2-Positive B-Cell Acute Lymphoblastic Leukemia in Adult Patients: A Single-Institution Experience|url=https://www.ncbi.nlm.nih.gov/pubmed/28340183|journal=American Journal of Clinical Pathology|volume=147|issue=4|pages=357–363|doi=10.1093/ajcp/aqx005|issn=1943-7722|pmid=28340183}}</ref>  
|Chromosome X/Y abnormalities include either translocation of the immunoglobin heavy chain enhance locus into ''CRLF2'' (''IGH''::''CRLF2''—more commonly seen in adults) or a cryptic deletion involving the PAR1 psuedoautosomal region, resulting in fusion of ''CRLF2'' and ''P2RY8'' (more commonly seen in children); these alterations involving ''CRLF2'' have been associated with poor survival;<ref name=":7">{{Cite journal|last=Konoplev|first=Sergej|last2=Lu|first2=Xinyan|last3=Konopleva|first3=Marina|last4=Jain|first4=Nitin|last5=Ouyang|first5=Juan|last6=Goswami|first6=Maitrayee|last7=Roberts|first7=Kathryn G.|last8=Valentine|first8=Marc|last9=Mullighan|first9=Charles G.|date=2017|title=CRLF2-Positive B-Cell Acute Lymphoblastic Leukemia in Adult Patients: A Single-Institution Experience|url=https://www.ncbi.nlm.nih.gov/pubmed/28340183|journal=American Journal of Clinical Pathology|volume=147|issue=4|pages=357–363|doi=10.1093/ajcp/aqx005|issn=1943-7722|pmid=28340183}}</ref>  
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|Extra or iAMP21  
|Polysomy or iAMP21  
|These changes stem from telomere attrition that result in the amplification of all or a region on chromosome 21.
|These changes stem from telomere attrition that result in the amplification of all or a region on chromosome 21.
|Rare (<5%)
|Rare (<5%)