\n\n
分化型甲状腺癌(differentiated thyroid cancer,DTC)主要包括乳头状癌(papillary thyroid carcinoma,PTC)和滤泡状癌(follicular thyroid carcinoma,FTC),占甲状腺癌的 90% 以上。
\n\nDTC 的分期与初诊时的年龄有关,以 55 岁作为一道“分水岭”,具体如下[1]:
\n\n表 1. 55 岁以下 DTC 分期 | \n\t\t|
分期 | \n\t\t\t含义 | \n\t\t
I 期 | \n\t\t\t没有远处转移,无论肿瘤多大、是否转移到区域淋巴结 | \n\t\t
II 期 | \n\t\t\t发生远处转移(如肺、骨、脑) | \n\t\t
表 2. 55 岁及以上分期 | \n\t\t|
分期 | \n\t\t\t含义 | \n\t\t
I 期 | \n\t\t\t\n\t\t\t 肿瘤局限在甲状腺内,最大直径≤ 4 厘米; \n\n\t\t\t没有淋巴结转移和远处转移 \n\t\t\t | \n\t\t
II 期 | \n\t\t\t\n\t\t\t 满足以下两种情况之一: \n\n\t\t\t
| \n\t\t
III 期 | \n\t\t\t\n\t\t\t 无论淋巴结转移与否,无论肿瘤大小如何,但侵犯了皮下软组织、喉、气管、食管或喉返神经; \n\t\t\t没有远处转移 | \n\t\t
IVA 期 | \n\t\t\t\n\t\t\t 无论肿瘤大小如何,但侵犯了椎前筋膜、或包绕颈动脉或纵隔血管; \n\t\t\t没有远处转移 | \n\t\t
IVB 期 | \n\t\t\t\n\t\t\t 无论原发病灶和区域淋巴结转移病灶如何,发生了远处转移 \n\t\t\t | \n\t\t
简单说,之所以划分年龄,是因为大量研究表明,DTC 的结局与发病年龄密切相关。55 岁之前与之后发病的患者,结局大不相同,年轻患者预后较好。
\n\n早在 1979 年,就有研究[2]发现,DTC 患者的发病年龄与生存期有关,45 岁以上的患者,生存时间明显比 45 岁以下短。因此 1983 年版 TNM 分期中以 45 岁为分界线。此后的多项研究也发现,年龄是决定患者结局的独立因素。
\n\n随后的研究[3][4]显示,当年龄界限设为 55 岁时,与 45 岁相比,12% 的患者由之前的晚期(III~IV 期)归为早期(I~II 期),而分期对生存期的预测作用更显著。据此,新的年龄分界线更改为 55 岁。
\n\n共同撰写:复旦大学附属肿瘤医院 马奔医生
\n\n',tid:6,source:i,op_keyword:[],diseases:[{name:S}],releasetime:"2021-09-16",op_sole:0,duration:0,image:i,title:"分化型甲状腺癌是如何分期的?",url:i,op_doctors:[{hospital:m,text:D,doctor_clickable:1,hospital_clickable:0,doctor_type:0,weight:0,department:h,sole:0,follow:0,name:"嵇庆海",prefix:i,hprank:b,drid:10783,hpid:0,icon:P,position:f},{hospital:m,text:I,doctor_clickable:1,hospital_clickable:0,doctor_type:0,weight:0,department:h,sole:0,follow:0,name:N,prefix:i,hprank:b,drid:C,hpid:0,icon:T,position:f}],sole_recruit:{hospital:[],purpose:i,disease:[],area:[],treatment:[],drug:[],target:i,state:0,count:i},ref:[],op_hospital:{info:i,name:i,hprank:i,prefix:i,hpid:0,icon:i,clickable:0},op_copyright:i,ref_info:["Amin MB, Edge S, Greene F, et al.AJCC Cancer Staging Manual.[J].8th ed, New York: Springer; 2017.","Byar DP, Green SB, Dor P, et al.A prognostic index for thyroid carcinoma. A study of the E.O.R.T.C. Thyroid Cáncer Cooperative Group. European journal of cancer[J].Aug 1979; 15(8): 1033-1041.","Ganly I, Nixon IJ, Wang LY, et al.Survival from differentiated thyroid cancer: what has age got to do with it? Thyroid[J].2015;25: 1106-1114.","Nixon IJ, Wang LY, Migliacci JC, et al.An international multi-institutional validation of age 55 years as a cutoff for risk stratification in the AJCC/UICC staging system for well-differentiated thyroid cancer[J].Thyroid. 2016;26:373-380."],sourceid:4,abs:"肿瘤分为 I~IV 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