As one of the chemotherapy agents in a first-line chemotherapy regimen for patients with metastatic naso-pharyngeal carcinoma(NPC),gemcitabine bring excellent therapeutic efficacy and controllable safety.This report described the diagnosis and treatment of thrombocytosis in a patient with NPC with liver metastases after chemotherapy of gemcitabine and discussed the association between thrombocy-tosis and the use of gemcitabine and its possible mechanism.It provided practical references for clinicians to diagnose and treat similar cases.
adverse drug reactionreactive thrombocyto-sisgemcitabine