Cancer Institute and Hospital, Chinese Academy of Medical Sciences
With
China-Japan Friendship Hospital
Shanxi Province Cancer Hospital
Zhengzhou University
Age
18–80
Sex
ALL
Healthy volunteers
Not accepted
You may be eligible if
Aged between 18 and 80 years
Pathologically confirmed adenocarcinoma of the colon or rectum
Underwent radical resection for colorectal cancer with a D3 lymphadenectomy and lymph nodes were submitted for pathological examination according to standardized station-based and distance-based protocol
No distant metastasis or distant metastasis within 6 months after surgery
No history of other malignant tumors or severe systemic diseases
No immune diseases or inflammatory bowel diseases
Non-emergency surgery
With complete clinicopathological and follow-up data
You may not be if
Pathologically confirmed benign tumors or non-adenocarcinoma malignancies
Underwent local excision or palliative resection
Regional lymph nodes were not dissected or submitted for pathological examination according to the unified station-based or distance-based protocol
With distant metastasis or distant metastasis within 6 months after surgery
Dual or multiple primary colorectal cancers or concurrent other malignant tumors
Had a previous diagnosis of immune diseases or inflammatory bowel disease such as ulcerative colitis or Crohn's disease
Underwent emergency surgery
Had incomplete clinicopathological or follow-up data
