英语翻译Esophagus staging formPrimary tumor(T)TX:Primary

英语翻译Esophagus staging formPrimary tumor(T)TX:Primary tumor cannot assessedT0:No evidence of primary tumorTis:High-grade dysplasia.T1:Tumor invades lamina propria,muscularis mucosae,or submucosaT1a:Tumor invades lamina propria,muscularis mucosaeT1b:Tumor invades submucosaT2:Tumor invades muscularis propriaT3:Tumor invades adventitiaT4:Tumor invades adjacent structuresT4a:Resectable tumor invading pleura,or diaphragmT4b:Unresectable tumor invading other adjacent structures,such as aorta,vertebral body,trachea,etc.＊High-grade dysplasia includes all non-invasive neoplastic epithelium that was formerly called carcinoma in situ,a diagnosis that is no longer used for columnar mucosae anywhere in the gastrointestinal tract.Regional Lymph Nodes (N)NX:Regional lymph nodes cannot be assessedN0:No regional lymph node metastasisN1:Regional lymph nodes metastasis involving 1 to 2 nodesN2:Regional lymph nodes metastasis involving 3 to 6 nodesN3:Regional lymph nodes metastasis involving 7 or more nodesDistant Metastasis (M)M0:No distant metastasis(no pathologic M0；use clinical M to complete stage group) M1:Distant metastasis