Kikuchi’s Necrotizing Lymphadenitis: A Cause of Fever of Unknown Origin and Splenomegaly

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Abstract
Kikuchi’s disease is characterized by lymphadenopathy in young patients and may be mistaken for malignant disease both clinically and histologically. We report the case of a 26-year-old man with persistent fever for 3 weeks and splenomegaly, in whom pancytopenia developed afterwards. A bone marrow aspiration was normal. Blood, urine, throat, stool and bone marrow cultures were negative as were serological tests for lues, Toxoplasma, Epstein-Barr virus and Widal’s test. An abdominal CT scan showed enlarged retroperitoneal lymph nodes and an exploratory laparotomy was performed. Two lymph nodes were excised and a wedge biopsy of the liver was performed. The histological findings in the lymph nodes were compatible with the diagnosis of Kikuchi’s disease. The patient became afebrile on the 2nd postoperative day without any treatment. He has been well for 4 months after discharge.

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