患儿 ,男 ,11岁。因右耳听力下降 1年在院外以“分泌性中耳炎”治疗无效而转本院。患者 1年来右耳听力逐渐下降 ,无耳溢脓及头痛 ,无眩晕及面瘫。 1年来右耳前瘘管口不断有黄白色分泌物排出。曾有“先天性动脉导管未闭”病史 ,已愈。入院查体 :双耳前瘘管 ,右耳鼓膜增厚 ,活动 Children, male, 11 years old. Due to a decrease in hearing on the right ear 1 year outside the hospital to “secretory otitis media” treatment invalid and transferred to the hospital. Patients with hearing loss gradually decreased over the past year, no ear discharge and headache, no dizziness and facial paralysis. 1 year ago, the right ear fistula mouth with yellow and white secretions continue to discharge. Had “congenital patent ductus arteriosus” history, has been more. Admission examination: both ears before the fistula, right ear tympanic membrane thickening, activity