To date a Th1, but not a Th17 phenotype has been described in the gastrointestinal mucosa of BD patients.[13,14] Indeed, in 2005 Imamura observed by immunohistochemistry analysis that cells infiltrating the intestinal lesions of Behçet patients were mainly constituted by CD4+T lymphocytes. The gene discussed is CD4; the disease is Behcet disease.