Abstract
Hairy cell leukemia can be responsible for polyarthritis due either to leukemic infiltration or to immunity-drive inflammation. The second variant can antedate or post-date the clinical onset of leukemic symptoms and usually presents as rheumatoid arthritis, more rarely as lupus or scleroderma. The presence of hairy cells in the joint fluid does not rule out autoimmune polyarthritis. The main differential diagnoses are Felty's syndrome and large granular lymphocyte leukemia. We report a case of hairy cell leukemia with seropositive rheumatoid arthritis.
MeSH terms
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Aged
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Aged, 80 and over
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Antibodies, Antinuclear / analysis
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Antineoplastic Agents / therapeutic use
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Arthritis, Rheumatoid / drug therapy
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Arthritis, Rheumatoid / etiology*
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Arthritis, Rheumatoid / immunology
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B-Lymphocytes / immunology
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B-Lymphocytes / pathology
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C-Reactive Protein / analysis
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Diagnosis, Differential
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Glucocorticoids / therapeutic use
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Humans
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Immunity
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Interferon alpha-2
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Interferon-alpha / therapeutic use
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Leukemia, Hairy Cell / complications*
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Leukemia, Hairy Cell / drug therapy
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Male
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Prednisone / therapeutic use
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Recombinant Proteins
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Rheumatoid Factor / analysis
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Synovial Fluid / cytology
Substances
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Antibodies, Antinuclear
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Antineoplastic Agents
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Glucocorticoids
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Interferon alpha-2
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Interferon-alpha
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Recombinant Proteins
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C-Reactive Protein
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Rheumatoid Factor
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Prednisone