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为便于分类,UICC(1978)已将下咽分为如下三个部位:咽-食管连接处、梨状窝、咽后壁。下咽癌较少见,在英国的年发病率为7/1,000,000,发生于咽后壁者占5～23%。对下咽癌采取的治疗方式尚不统一。最早用颈前进路,以后改为颈侧进路。也有采用保留喉重建咽后壁法和中线咽切开法、全咽喉切除胃移植法、单纯放疗和联合放疗法者。由于下咽癌分类混乱,很难对已发表的材料中的疗效进行对比。最好的结果是放疗,五年存活率33%。据Wil-kins(1971)引证的一些未发表的资料为:五年存活率1期38%,2期33%,3期20%。4期0。本文报告28例下咽鳞癌,分期为:4例曾经其他单位治疗,归类为T_xN_0M_0,T_1N_0M_010例,
To facilitate classification, UICC (1978) has divided the hypopharynx into the following three sites: the pharyngeal-oesophageal junction, the pyriform sulcus, and the posterior pharyngeal wall. Hypopharyngeal cancer is less common, with an annual incidence of 7/1,000,000 in the United Kingdom and 5 to 23% in the posterior pharyngeal wall. The treatment of hypopharyngeal cancer is not uniform. The earliest use of cervical advance road, later changed to neck side approach. Remaining larynx was also used to reconstruct the posterior pharyngeal wall and midline pharyngotomy, total pharyngeal excision stomach transplantation, radiotherapy alone and combined radiotherapy. Due to the disordered classification of hypopharyngeal cancer, it is difficult to compare the efficacy of published materials. The best result is radiotherapy. The five-year survival rate is 33%. Some of the unpublished data cited by Wil-kins (1971) are: 38% survival rate in 1 period, 33% in period 2, and 20% in period 3. 4 period 0. This article reports 28 cases of squamous cell carcinoma of the pharyngeal sinus. The staging is: 4 cases have been treated with other units, classified as T_xN_0M_0, T_1N_0M_010 cases.