Division of Gastroenterology;
IRCCS Istituto Clinico Humanitas;
Rozzano;
Milan 20089;
Italy;
Department of Surgery;
IRCCS Istituto Clinico Humanitas;
Rozzano;
Milan 20089;
Italy;
Department of Translational Medicine;
Univer-sity of Milan;
Milan 20100;
Italy;
Narrow-band imaging; Angiogenesis; Inflammatory bowel disease; Crohn’s disease; Ulcerative colitis;