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Table 2 ICD-O 3 morphology codes for tumours of the colon and the rectum

From: TNM-O: ontology support for staging of malignant tumours

Type ICO-O 3 morphology
Adenocarcinoma 8140/3
Mucinous adenocarcinoma 8480/3
Signet-ring cell carcinoma 8490/3
Small cell carcinoma 8041/3
Squamous cell carcinoma 8070/3
Adenosquamous carcinoma 8560/3
Medullary carcinoma 8510/3
Undifferentiated carcinoma 8020/3