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Published on: March 30, 2018
Epstein-Barr virus-related diffuse large B-cell lymphoma type methotrexate-associated lymphoproliferative disorders
Kazuki Doi1, Mototsugu Muramaki1, Tetsuro Yamamoto2
1Department of Urology Hyogo Prefectural Amagasaki General Medical Center Amagasaki-shi Hyogo Japan.
Introduction:
Methotrexate-associated lymphoproliferative disorders appear during treatment with methotrexate as an immunosuppressive drug. However, the mechanism and frequency are still unknown, and the treatment is undefined.
Case Presentation:
A 76-year-old woman was admitted to the hospital with back pain, and magnetic resonance imaging showed a tumor in the right adrenal region. She had received methotrexate for rheumatoid arthritis. Enhanced computed tomography showed a tumor of 90 mm in diameter on the dorsal side of the liver abutting to the inferior vena cava. The preoperative diagnosis was a hepatic invasion of right adrenocortical carcinoma and right adrenalectomy was performed. The histopathological diagnosis was diffuse large B-cell lymphoma. The final diagnosis was methotrexate-associated lymphoproliferative disorders.
Conclusion:
It is important to consider methotrexate-associated lymphoproliferative disorders before surgery when neoplastic lesions are found in patients taking methotrexate.
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