B-Lymphoblastic Leukemia/Lymphoma with IKZF1 Deletions

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This page from the 4th edition of Haematolymphoid Tumours is being updated. See 5th edition Table of Contents.

Primary Author(s)*

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Cancer Category/Type

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Cancer Sub-Classification / Subtype

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Definition / Description of Disease

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Synonyms / Terminology

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Epidemiology / Prevalence

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Clinical Features

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Sites of Involvement

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Morphologic Features

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Immunophenotype

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Finding	Marker
Positive (universal)	EXAMPLE CD1
Positive (subset)	EXAMPLE CD2
Negative (universal)	EXAMPLE CD3
Negative (subset)	EXAMPLE CD4

Chromosomal Rearrangements (Gene Fusions)

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Chromosomal Rearrangement	Genes in Fusion (5’ or 3’ Segments)	Pathogenic Derivative	Prevalence
EXAMPLE t(9;22)(q34;q11.2)	EXAMPLE 3'ABL1 / 5'BCR	EXAMPLE der(22)	EXAMPLE 5%
EXAMPLE t(8;21)(q22;q22)	EXAMPLE 5'RUNX1 / 3'RUNXT1	EXAMPLE der(8)	EXAMPLE 5%

Characteristic Chromosomal Aberrations / Patterns

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Genomic Gain/Loss/LOH

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Chromosome Number	Gain/Loss/Amp/LOH	Region
EXAMPLE 8	EXAMPLE Gain	EXAMPLE chr8:0-1000000
EXAMPLE 7	EXAMPLE Loss	EXAMPLE chr7:0-1000000

Gene Mutations (SNV/INDEL)

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Gene	Mutation	Oncogene/Tumor Suppressor/Other	Presumed Mechanism (LOF/GOF/Other; Driver/Passenger)	Prevalence (COSMIC/TCGA/Other)
EXAMPLE TP53	EXAMPLE R273H	EXAMPLE Tumor Suppressor	EXAMPLE LOF	EXAMPLE 20%

Other Mutations

Type	Gene/Region/Other
Concomitant Mutations	EXAMPLE IDH1 R123H
Secondary Mutations	EXAMPLE Trisomy 7
Mutually Exclusive	EXAMPLE EGFR Amplification

Epigenomics (Methylation)

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Genes and Main Pathways Involved

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Diagnostic Testing Methods

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Clinical Significance (Diagnosis, Prognosis and Therapeutic Implications)

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Familial Forms

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Other Information

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Links

IKZF1

References

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EXAMPLE Book

1. Arber DA, et al., (2017). Acute myeloid leukaemia with recurrent genetic abnormalities, in World Health Organization Classification of Tumours of Haematopoietic and Lymphoid Tissues, Revised 4th edition. Swerdlow SH, Campo E, Harris NL, Jaffe ES, Pileri SA, Stein H, Thiele J, Arber DA, Hasserjian RP, Le Beau MM, Orazi A, and Siebert R, Editors. IARC Press: Lyon, France, p129-171.

Notes

*Primary authors will typically be those that initially create and complete the content of a page. If a subsequent user modifies the content and feels the effort put forth is of high enough significance to warrant listing in the authorship section, please contact the CCGA coordinators (contact information provided on the homepage). Additional global feedback or concerns are also welcome.