[One case of eustachian tube hairy polyp was removed by microscope combined with endoscope].

This paper reports the diagnosis and treatment of a child with eustachian hairy polyp. The patient was a female, aged 1 year and 4 months, and visited our clinic due to "intermittent purulent discharge of the left ear, nasal congestion and sleep snoring for 1 year". Preoperative endoscopic examination found white masses at the posterior part of the nasal cavity on both sides. The imaging findings showed masses with streaks and circular-like mixed signal accompanied by slightly uneven enhancement at the left eustachian duct and the posterior wall of the nasopharyngeal cavity, and soft tissue density in the left tympanic antrum. Left modified radical mastoidectomy and radical endoscopic resection surgery for nasopharyngeal tumors was performed under general anesthesia. Histopathological examination revealed polyp of the left eustachian tube hair. The patient's symptoms improved after surgery, and no tumor recurrence was found after 3 months of follow-up.