Objective:To explore the therapeutic methods and effect of pingyangmycin injection in huge hemangioma at Hypopharynx and laryngeal under suspension laryngoscopy.Method:To ananysize the medical records of 12Patients with giant hemangioma at hypopharynx and laryngeal.Patients were underwent polysomnography before operation.Inseted the suspension laryngoscopy to pars laryngea by mouth to exposing the hemangioma under general anaesthesia,then injected Pingyangmycin by a long-tube needling(one time per three wee...