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Hairy Cell Leukemia Treatment (PDQ®): Treatment - Health Professional Information [NCI] - Stage Information for Hairy Cell Leukemia

No generally accepted staging system is useful for both prognosis and therapy.

For the purpose of treatment decisions, it is best to consider this disease in the following two broad categories:

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Purpose of This Summary This PDQ cancer information summary for health professionals provides comprehensive, peer-reviewed, evidence-based information about cancer prevention. It is intended as a resource to inform and assist clinicians who care for cancer patients. It does not provide formal guidelines or recommendations for making health care decisions. Reviewers and Updates This summary is reviewed regularly and updated as necessary by the PDQ Screening and Prevention Editorial...

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  • Untreated hairy cell leukemia.
  • Progressive hairy cell leukemia, either postsplenectomy or postsystemic therapy.

Untreated hairy cell leukemia

Untreated hairy cell leukemia is characterized by splenomegaly, varying degrees of leukopenia (occasionally leukocytosis) and/or pancytopenia, and bone marrow infiltration by an atypical cell with prominent cytoplasmic projections (i.e., hairy cells). The bone marrow is usually fibrotic and is not easily aspirated. Bone marrow biopsies are, therefore, required for diagnosis and evaluation of the degree of hairy cell infiltration.

Progressive hairy cell leukemia

Progressive hairy cell leukemia, postsplenectomy (or following any systemic therapy) is characterized by progressive bone marrow replacement by hairy cells with pancytopenia refractory to treatment. For patients with advanced hairy cell leukemia treated with cladribine (2-chlorodeoxyadenosine, 2-CdA), pentostatin, or interferon-alpha, the survival rate appears to be more than 85% at 5 years following the initiation of any one of these therapies.[1,2]

References:

  1. Frassoldati A, Lamparelli T, Federico M, et al.: Hairy cell leukemia: a clinical review based on 725 cases of the Italian Cooperative Group (ICGHCL). Italian Cooperative Group for Hairy Cell Leukemia. Leuk Lymphoma 13 (3-4): 307-16, 1994.
  2. Kurzrock R, Strom SS, Estey E, et al.: Second cancer risk in hairy cell leukemia: analysis of 350 patients. J Clin Oncol 15 (5): 1803-10, 1997.
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WebMD Public Information from the National Cancer Institute

Last Updated: February 25, 2014
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
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