Brucellosis Presenting as Isolated Abdominal Lymphadenopathy Masquerading as Lymphoma: A Case Report.

Mesenteric lymphadenopathy associated with high-grade fever can be frequently associated with hematologic malignancies, especially if accompanied by joint pain, weight loss, and anorexia. However, this constellation of symptoms, also known as "B Symptoms," can be the uncommon presenting manifestation of brucellosis, still a common zoonotic disease in the Middle Eastern basin. In this article, we report the case of a Lebanese man who presented with "B symptoms" of three weeks duration, who was thought to have lymphoma but was later found to have systemic brucellosis.