Noncaseating suppurative granulomatous lymphadenitis in adult onset Still's disease - a diagnostic dilemma in a tuberculosis-endemic region: a case report.

Background: Lymphadenopathy is not an uncommon presentation of adult onset Still's disease: it is present in up to two thirds of patients with adult onset Still's disease. The characteristic appearance of lymphadenopathy is described as intense, paracortical immunoblastic hyperplasia. Changes in light microscopy may resemble lymphoma, but immunohistochemistry reveals a benign polyclonal B cell hyperplasia.