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Primary thyroid marginal zone B-cell lymphoma MALT-type in a patient with rheumatoid arthritis
Songul Serefhanoglu1, Umit Tapan, Ihsan Ertenli
1Division of Hematology, Department of Internal Medicine, Hacettepe University Hospital, Sihhiye, 06100, Ankara, Turkey. dr.songul1978@yahoo.com
Abstract:
Autoimmune diseases are defined as specific, adapted immune reactions against self antigens. Immune mechanism deficiency is a causal factor for B-cell lymphoma in primary Sjögren's syndrome and autoimmune thyroid disease. Thyroid mucosa-associated lymphoid tissue (MALT) lymphoma is a 67-fold and parotid lymphoma is a 44-fold increased risk in Sjögren's syndrome and thyroiditis. MALT lymphoma was not reported in rheumatoid arthritis. We herein report the case of a 56-year-old woman with maltoma of thyroid in rheumatoid arthritis patient.
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