外科理论与实践 ›› 2021, Vol. 26 ›› Issue (01): 21-27.doi: 10.16139/j.1007-9610.2021.01.005
收稿日期:
2020-11-25
出版日期:
2021-01-25
发布日期:
2022-07-28
通讯作者:
熊斌
E-mail:binxiong1961@whu.edu.cn
Received:
2020-11-25
Online:
2021-01-25
Published:
2022-07-28
中图分类号:
杨萍, 熊斌. 阑尾黏液瘤的诊断和治疗[J]. 外科理论与实践, 2021, 26(01): 21-27.
YANG Ping, XIONG Bin. Diagnosis and treatment of appendiceal mucinous neoplasm[J]. Journal of Surgery Concepts & Practice, 2021, 26(01): 21-27.
表1
阑尾非类癌上皮肿瘤组织学分型
术语 | 分级 | 组织学特征 |
---|---|---|
腺瘤 | 低/高度发育异常 | 局限于黏膜,黏膜肌层完整 |
锯齿状息肉 | 低/高度或无发育异常肿瘤 | 锯齿状特征,局限于黏膜,黏膜肌层完整 |
LAMN | 低级别 | 具有低级别细胞学的黏液性肿瘤和以下特征中的任何一种: 固有层和黏膜肌层缺失 黏膜下层纤维化 呈“推挤性”模式进入阑尾壁,膨胀性或憩室样生长方式 无细胞的黏液切割入阑尾壁内 黏液和(或)肿瘤性黏液上皮位于阑尾壁外 |
HAMN | 高级别 | 伴高级别细胞学(至少局灶存在)的黏液性肿瘤且无浸润性生长 |
黏液性腺癌 | 高/中/低分化 | 黏液瘤,包含>50%的细胞外黏蛋白,呈浸润性生长 |
印戒细胞低分化 (黏液性)腺癌 | 低分化 | ≤50%的印戒细胞成分 |
(黏液性)印戒细胞癌 | 低分化 | >50%的印戒细胞成分 |
腺癌 | / | / |
表4
AMN分期(AJCC第8版)(二)
分期 | 描述 | |
---|---|---|
原发肿瘤(T) | ||
Tx | 原发肿瘤无法评价 | |
T0 | 无原发肿瘤的证据 | |
Tis | 原位癌(黏膜内癌;侵入固有层;侵犯黏膜肌,但未穿透黏膜肌层) | |
Tis(LAMN) | LAMN,局限于固有肌层的。黏液或黏液上皮可侵入固有肌层。 注:T1和T2不适用于LAMN,黏液或黏液上皮进入浆膜下层或浆膜层时应分到T3或T4a | |
T1 | 肿瘤侵及黏膜下层(穿透黏膜肌层,未达到固有肌层) | |
T2 | 肿瘤侵及固有肌层 | |
T3 | 肿瘤穿透固有肌层,侵及浆膜下或阑尾系膜 | |
T4 | T4a | 肿瘤侵犯腹膜脏层,包括黏液或黏液上皮侵入阑尾浆膜或阑尾系膜 |
T4b | 肿瘤侵犯邻近组织及器官 | |
区域淋巴结(N) | ||
Nx | 淋巴结不能评价 | |
N0 | 无淋巴结转移 | |
N1 | N1a | 1枚淋巴结转移 |
N1b | 2~3枚淋巴结转移 | |
N1c | 无淋巴结阳性,但浆膜下或肠系膜处可见癌细胞 | |
N2 | ≥4枚淋巴结转移 | |
远处转移(M) | ||
M0 | 无远处转移 | |
M1 | 有远处转移 | |
M1a | 腹膜内的无细胞黏液,在腹膜播散性的黏液中未见明确肿瘤细胞 | |
M1b | 仅腹膜内转移,包括腹膜黏液中见肿瘤细胞 | |
M1c | 腹膜外转移 | |
分化程度(G) | ||
Gx | 无法评估分化程度 | |
G1 | 高分化 | |
G2 | 中分化 | |
G3 | 低分化,未分化 |
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