Abstract
A 63-year-old man with rheumatoid arthritis presented with pain and swelling of his right buttock. Imaging and tissue biopsy revealed a diffuse large B-cell, non-Hodgkin's lymphoma. The disease-modifying drugs he was taking, cyclosporin and methotrexate, were stopped, and the lymphoma resolved spontaneously without the use of chemotherapy.
MeSH terms
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Arthritis, Rheumatoid / complications
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Arthritis, Rheumatoid / drug therapy*
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Buttocks
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Cyclosporine / administration & dosage*
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Cyclosporine / adverse effects
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Drug Therapy, Combination
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Humans
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Immunosuppressive Agents / administration & dosage*
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Immunosuppressive Agents / adverse effects
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Lymphoma, B-Cell / complications
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Lymphoma, B-Cell / diagnosis
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Lymphoma, B-Cell / pathology*
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Lymphoma, Large B-Cell, Diffuse / complications
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Lymphoma, Large B-Cell, Diffuse / diagnosis
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Lymphoma, Large B-Cell, Diffuse / pathology*
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Male
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Methotrexate / administration & dosage*
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Methotrexate / adverse effects
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Middle Aged
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Muscle Neoplasms / complications
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Muscle Neoplasms / pathology
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Muscle, Skeletal / pathology
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Remission, Spontaneous
Substances
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Immunosuppressive Agents
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Cyclosporine
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Methotrexate