Table 1-3.

Checklist for descriptions of the Japanese Classification of Esophageal Cancer (surgically treated cases)

Tumor location: Ce, Ut, Mt, Lt, Ae

Size: maximum length (mm) and orthogonally oriented maximum width (mm)

Macroscopic tumor type:

Type 0, Type 1, Type 2, Type 3, Type 4, Type 5, Combined type, Others

Subclassification for superficial cancers: 0-I(0-Ip, 0-Is), 0-II(0-IIa, 0-IIb, 0-IIc), 0-III

Histological type: squamous cell carcinoma, basaloid (-squamous) carcinoma, carcinosarcoma, adenocarcinoma, Barrett's adenocarcinoma, adenosquamous carcinoma, mucoepidermoid carcinoma, adenoid cystic carcinoma, neuroendocrine cell tumor, undifferentiated carcinoma, other carcinomas, non-epithelial malignant tumors, GIST, malignant melanoma

Depth of tumor invasion: pTX, pT0, pT1a (EP, LPM, MM), pT1b (SM1, SM2, SM3), pT2, pT3, pT4

Pattern of infiltration: INFa, INFb, INFc

Lymphatic invasion: ly0, ly1, ly2, ly3

Venous invasion: v0, v1, v2, v3

Intramural metastasis: pIMX, pIM0, pIM1

Involvement of resection margins

Proximal margin: pPMX, pPM0, pPM1

Distal margin: pDMX, pDM0, pDM1

Radial margin: pRMX, pRM0, pRM1

Multiple primary cancers: absent, present (number)

Lymph node metastasis: pNX, pN0, pN1, pN2, pN3, pN4

Number of positive nodes (No. of lymph node stations with positive nodes)

Distant metastasis: M0, M1

Residual tumor: pRX, pR0, pR1, pR2

Histological curativity: pCurA, pCurB, pCurC

Distant organ metastasis: MX, M0, M1; Intramural gastric metastasis: pIM1-St

Therapeutic efficacy: No data, Grade 0, Grade 1a, Grade 1b, Grade 2, Grade 3

Curativity: Cur A, Cur B, Cur C