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  • Title: Accelerated cutaneous nodulosis during methotrexate therapy in a patient with rheumatoid arthritis.
    Author: Williams FM, Cohen PR, Arnett FC.
    Journal: J Am Acad Dermatol; 1998 Aug; 39(2 Pt 2):359-62. PubMed ID: 9703153.
    Abstract:
    Rheumatoid nodulosis is characterized by multiple small subcutaneous granulomatous nodules typically located on the elbows in approximately 20% of patients with rheumatoid arthritis. Accelerated rheumatoid nodulosis, especially involving the hands and feet, has recently been reported in patients receiving methotrexate therapy for rheumatoid arthritis. We describe a woman with seropositive, erosive rheumatoid arthritis who, on two occasions, developed nonperiarticular subcutaneous nodules and new heart murmurs during methotrexate therapy, while her arthritis remained under good control. The nodules resolved after methotrexate was discontinued and recurred after methotrexate was reintroduced. They again resolved after methotrexate was stopped and colchicine was added. Her DNA oligotyping was positive for HLA-DRB1*0401, a genetic risk factor associated with accelerated rheumatoid nodulosis. Cutaneous biopsy specimens revealed palisading granulomas and giant cells consistent with rheumatoid nodulosis.
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