Patients with systemic lupus erythematosus (SLE) appear to have an increased risk of developing malignancies, especially lymphomas. We report the development of a systemic ALK-negative T-cell anaplastic large cell lymphoma, stage IIB, in a 53-yr-old Caucasian female with a 12-yr history of stable SLE. The patient responded poorly to chemotherapy and died 2 yr after diagnosis. Lymphomas that develop in patients with SLE and other autoimmune diseases are virtually always of B-cell origin. To our knowledge this is the first report of a T-cell anaplastic large cell lymphoma in a patient with SLE. This article discusses the association of SLE and lymphoma, with an emphasis on T-lymphoproliferative states.

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