, Volume 33, Issue 12, pp 3065-3068

Kikuchi-Fujimoto disease: a case supporting a role for human herpesvirus 7 involvement in the pathogenesis

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Abstract

Kikuchi’s disease, also known as histiocytic necrotizing lymphadenitis, is a rare, benign, and self-limited disorder of unknown cause that is usually characterized by cervical lymphadenopathy and fever. The etiology and pathogenesis remain unknown, but the clinical presentation, course, and histologic changes suggest an immune response of T cells and histiocytes to an infectious agent. Numerous inciting agents have been proposed. However, the association between human herpesvirus 7 and Kikuchi’s disease has been rarely reported as a possible etiologic agent of Kikuchi’s disease. We report the case of a 24-year-old Caucasian female patient with cervical lymphadenopathy and isolated pruriginous maculo-papular lesions who was diagnosed of Kikuchi’s disease in whom the presence of human herpesvirus 7 DNA was documented in the affected lymph node specimen in the absent of other viruses. Therefore, a possible etiologic relation between the Kikuchi’s disease of this patient and human herpesvirus 7 was established, supporting a role for human herpesvirus 7 involvement in the pathogenesis.