患者李某某，女，25岁。因左侧鼻塞进行性加重6个月，伴有左鼻反复少量出血及鼻内轻微疼痛感。就诊前三天自摸觉左侧鼻腔内有包块。既往无鼻腔异物史及界外伤史。检查：左侧鼻腔内有一咖啡色赘生物，触之有坚硬感，鼻中隔轻度向右侧偏曲。用1％麻黄素及1％地卡因液少量滴入左侧 Lee Moumou patients, female, 25 years old. Aggravated by the left nasal congestion for 6 months, accompanied by a small amount of repeated left nasal bleeding and nasal minor pain. Three days before the visit felt the left nasal cavity mass. No past history of nasal foreign body and trauma history. Check: There is a brown neoplasm of the left nasal cavity, touching a sense of hard, mild nasal septum deviation to the right. A small amount of 1% ephedrine and 1% cocaine drip into the left