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Ref Type | Journal Article | ||||||||||||
PMID | (29118233) | ||||||||||||
Authors | Wierda WG, Byrd JC, Abramson JS, Bhat S, Bociek G, Brander D, Brown J, Chanan-Khan A, Coutre SE, Davis RS, Fletcher CD, Hill B, Kahl BS, Kamdar M, Kaplan LD, Khan N, Kipps TJ, Lancet J, Ma S, Malek S, Mosse C, Shadman M, Siddiqi T, Stephens D, Wagner N, Zelenetz AD, Dwyer MA, Sundar H | ||||||||||||
Title | Hairy Cell Leukemia, Version 2.2018, NCCN Clinical Practice Guidelines in Oncology. | ||||||||||||
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Abstract Text | Hairy cell leukemia (HCL) is a rare type of indolent B-cell leukemia, characterized by symptoms of fatigue and weakness, organomegaly, pancytopenia, and recurrent opportunistic infections. Classic HCL should be considered a distinct clinical entity separate from HCLvariant (HCLv), which is associated with a more aggressive disease course and may not respond to standard HCL therapies. Somatic hypermutation in the IGHV gene is present in most patients with HCL. The BRAF V600E mutation has been reported in most patients with classic HCL but not in those with other B-cell leukemias or lymphomas. Therefore, it is necessary to distinguish HCLv from classic HCL. This manuscript discusses the recommendations outlined in the NCCN Guidelines for the diagnosis and management of classic HCL. |
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Gene | Variant | Impact | Protein Effect | Variant Description | Associated with drug Resistance |
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Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
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BRAF V600E | hairy cell leukemia | not applicable | N/A | Guideline | Diagnostic | BRAF V600E is diagnostic and aids in distinguishing classic hairy cell leukemia (cHCL) from variant hairy cell leukemia (HCLv) and other B-cell lymphomas and leukemias (PMID: 29118233, NCCN.org). | detail... 29118233 |