Hypersensitivity to Mosquito Bites Associated with Natural Killer Cell-derived Large Granular Lymphocyte Lymphocytosis: A Case Report in Korea

Hypersensitivity to mosquito bites (HMB) is characterized by intense skin reactions at bite sites. The pathogenesis of HMB might be related to clonal lymphoproliferation of Epstein-Barr virus DNA-positive natural killer (NK) cells. We report the first case of HMB possibly associated with NK cell-derived large granular lymphocyte (NK-LGL) lymphocytosis in Korea.