Minimum pathological dataset for colorectal cancer reporting2
| Patient details |
| Name, date of birth, hospital, hospital number, histology number, surgeon |
| Gross description |
| Site of tumour |
| Maximum tumour diameter |
| Distance of tumour to nearer margin (cut end) |
| Presence of tumour perforation (pT4) |
| For rectal tumours |
| Tumour position in relation to peritoneal reflection |
| Distance from the dentate line |
| Histology |
| Type (adenocarcinoma or other) |
| Differentiation (well/moderate or poor) |
| Local invasion (submucosa pT1) |
| (muscularis propria pT2) |
| (beyond muscularis propria pT3) |
| (peritoneum breached or invasion of adjacent organs pT4) |
| Margin involvement (if applicable) |
| Doughnut |
| Margin (cut end) |
| For rectal tumours |
| Circumferential margin involvement |
| Histological measurement from tumour to circumferential margin (in mm) |
| Metastatic spread |
| Number of lymph nodes examined |
| Number of positive lymph nodes (pN1: 1–3 nodes, pN2: 4+ nodes involved) |
| Apical node positive (Dukes's C2) |
| Extramural vascular invasion |
| Background abnormalities |
| Adenoma(s) |
| Synchronous carcinoma(s)—these require a separate minimum dataset to be completed |
| Ulcerative colitis |
| Crohn's disease |
| Familial adenomatous polyposis |
| Other |
| Pathological staging |
| Complete resection at all margins |
| TNM |
| Dukes's |
| Histologically confirmed liver metastases |