从1974年以来我们采用液氮冷冻治疗耳鼻咽喉疾病,体表血管瘸和恶性肿瘤,绝大部份收到良好效果。但也有过一些经验教训、现进行总结,供同志们参考。一、灌注法冷冻不宜治疗较大的体表恶性肿瘤。一般公认对于某些浅表的局限性恶性肿瘤,冷冻可作为首选的治疗方法,从而避免了手术,保留了外观和功能、也避免放 Since 1974, we have used liquid nitrogen cryotherapy for otolaryngologic diseases, surface vasospasms and malignant tumors, and most have received good results. However, there have been some lessons learned and are now summarized for reference by comrades. First, perfusion freezing should not treat larger surface malignant tumors. It is generally accepted that for some superficial malignancies, freezing can be used as the first choice for treatment, thus avoiding surgery, retaining appearance and function, and avoiding