Department of Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan.
Department of Surgery and Science, Faculty of Medicine, Academic Assembly, University of Toyama, Toyama, Japan.
J Hepatobiliary Pancreat Sci. 2024 Nov;31(11):755-768. doi: 10.1002/jhbp.12056. Epub 2024 Jul 29.
In 2023, the Japan Pancreas Society (JPS) published the new eighth edition of the Japanese classification of pancreatic carcinoma. We present here an excerpted version in English, based on the latest edition. The major changes in this revision are as follows: In the eighth edition of the Union for International Cancer Control (UICC), the T category was changed to be based on tumor size; however, the eighth edition of the Japanese classification retains the previous T category based on local invasion factors. Lymph nodes have been renamed, and regional lymph nodes have been defined by location. Peritoneal cytology, which was not previously included in distant metastasis (M), has now been included in the M category. Moreover, significant additions have been made regarding the pathological diagnosis of endoscopic ultrasound-guided fine-needle aspiration biopsy (EUS-FNAB) and criteria for histological assessment of the effects after chemotherapy and radiation therapy. Although this classification is aimed at carcinoma originating in the pancreas, not in the bile duct or duodenum, if the differentiation of the primary organ is difficult, this classification should be applied. It is also desirable to describe tumors other than carcinoma and metastatic tumors to the pancreas in accordance with this classification.
2023 年，日本胰腺学会（JPS）发布了新版日本胰腺肿瘤分类的第八版。我们在此呈现的是基于最新版翻译的英文摘录版。本次修订的主要变化如下：在国际抗癌联盟（UICC）的第八版中，T 分期改为基于肿瘤大小；然而，日本分类的第八版仍然保留了以前基于局部侵犯因素的 T 分期。淋巴结已重新命名，并按位置定义了区域淋巴结。以前不包括在远处转移（M）中的腹膜细胞学现在已被纳入 M 分期。此外，还对内镜超声引导下细针穿刺活检（EUS-FNAB）的病理诊断以及化疗和放疗后组织学评估标准进行了重要补充。尽管该分类旨在针对起源于胰腺的癌，而不是胆管或十二指肠的癌，但如果原发器官的分化困难，应适用该分类。按照该分类描述胰腺的非癌性肿瘤和转移瘤也是理想的。
