Characterization of Phenotype and Genotype of Early Onset Enteropathies

Inclusion Criteria

• •Severe chronic enteropathy
• •Patients developing their first symptoms within the first 6 years of life and, in priority within the first two years of life, or patients with a disease of later onset, in case of a familial history suggestive of inherited mutations notably in families comprising several affected members
• •OR : Be a patient's relative, even if presenting with enteropathy of later onset.