Kikuchi-Fujimoto's disease (histiocytic necrotizing lymphadenitis) is a benign, self-limited disease of unknown cause that often presents with persistently enlarged cervical lymph nodes that are unresponsive to antibiotic therapy. The disease should be considered in the differential diagnosis of cervical lymphadenopaty: viral infection, tuberculosis, hyperplastic lymphadenopathy, and metastatic disease. It can be confused histologically with malignant lymphoma.