<prompt> Thumb print sign is seen inIleal atresiaMeconium ileusCrohns diseaseIschemic colitis  <response>: Thumb printing: Indentation in contrast or air-filled bowel lumen caused by sub mucosal infiltration and resembling a thumb printing; e.g. Ischemia Thumbprinting is a Radiographic sign of large bowelwall thickening, usually caused by edema, related to an infective or inflammatory process colitis. The normal haustra become thickened at regular intervals appearing like thumb-prints projecting into the aerated lumen. 