The subject is participating in a category 1 interventional study, or is in a period of exclusion determined by a previous study

The subject signals their opposition to participate in the study

It is impossible to give the subject informed information

The patient is under safeguard of justice or state guardianship

Patient pregnant or breastfeeding

History of proven cancerous disease

Patient followed for a chronic inflammatory bowel disease

Proof-of-concept Study of Blood Markers of Tumor Dissemination in Patients With Versus Without Intestinal Polyps