Table 1

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
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)
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
Synchronous carcinoma(s)—these require a separate minimum dataset to be completed
Ulcerative colitis
Crohn's disease
Familial adenomatous polyposis
Pathological staging
Complete resection at all margins
Histologically confirmed liver metastases