患者,男,53岁。于1983年7月5日因左耳痛、流脓20天就诊。局部检查:耳周淋巴结未见肿大,左外耳道下壁峡部处有0.5×0.5cm 肉芽样物,触之极易出血,表面有少许脓液,鼓膜正常。活检报告为鳞状上皮癌。按Arena分期,诊断为左外耳道鳞癌(Ⅰ期)。无麻下施行局部喷射与接触法相结合的液氮低温冷冻:先用凡士林纱条放于外耳道深部, Patient, male, 53 years old. On July 5, 1983, she presented with left ear pain and pus for 20 days. Local examination: There was no enlargement of the lymph nodes around the ear. There was a 0.5x0.5cm granulation-like material at the pars surface of the left external auditory canal. It touched the bleeding easily. There was a little pus on the surface and the tympanic membrane was normal. The biopsy reports squamous cell carcinoma. Staged by Arena, diagnosed as left external auditory squamous cell carcinoma (stage I). The liquid nitrogen cryogenic freezing combined with the local injection and contact method under no anesthesia: firstly place Vaseline gauze in the deep part of the external auditory canal.