Age

18–any

Sex

ALL

Healthy volunteers

Not accepted

Colorectal or pancreatic adenocarcinoma or biliary tract adenocarcinoma
Cytologically or histologically proven adenocarcinoma, regardless of stage and treatment
Age ≥ 18 years old
Diagnosed from 2015 onwards
Signed Consent
Affiliation to a social security scheme (including CMU (Universal health coverage))

Patient under guardianship, curatorship or safeguarding of justice
Pregnant or breastfeeding woman
Any medical, psychological or social situation that could prevent compliance with the protocol according to the investigator's assessment.
Refusal to participate in the study
Patient on AME (state medical assistance)
Persons deprived of liberty by a judicial or administrative decision
Persons under psychiatric care

Microenvironment and Immunity of Digestive Cancers - East Paris Multicentric Cohort