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头颈部晚期恶性肿瘤无论采用放射治疗或手术治疗,复发率都很高,因此对此类肿瘤的治疗,冷冻外科具有一定的地位。目前冷冻外科分为:1.治疗性冷冻外科:没有颈部及远位转移者,肿瘤原发灶及其周围部分正常组织能够充分进行冷冻,使肿瘤得到控制,而产生治疗性效果。2.姑息性冷冻外科:由于肿瘤过大或其解剖部位关系,而不能充分冷冻以达到局部控制。此外颈部或远位有转移者即使局部冷冻亦不能治愈病人。但无
In the case of advanced malignant tumors of the head and neck, either radiotherapy or surgery, the recurrence rate is very high. Therefore, cryosurgery has a certain status in the treatment of such tumors. Currently cryosurgery is divided into: 1. Therapeutic cryosurgery: Without cervical and distant metastasis, the primary tumor and its surrounding normal tissue can be fully frozen, so that the tumor is controlled, resulting in a therapeutic effect. 2. Palliative cryosurgery: Because the tumor is too large or its anatomic relationship, it can not be fully frozen to achieve local control. In addition, patients who have metastases in the neck or distal position cannot cure the patient even if they are partially frozen. But no