Kikuchi-Fujimoto disease complicated by peripheral neuropathy.

Kikuchi-Fujimoto disease is a necrotizing lymphadenitis, mainly characterized by lymphadenopathy, fever, hepatosplenomegaly, nocturnal sweats, myalgia, weight loss, and arthralgia. Its diagnosis is most often based on lymph node biopsy. Differential diagnoses with several other diseases, e.g., malignant lymphoma, necrotizing lymphadenitis, and infective lymphadenopathies, may be challenging. Neurologic involvement is rarely reported in patients diagnosed with Kikuchi-Fujimoto disease. In this subset of patients, the great majority manifest signs involving the central nervous system. We present a 14-year-old boy with a severe form of Kikuchi-Fujimoto disease, complicated by peripheral neuropathy. This patient is interesting for both his age and his peculiar complication.