<prompt> Whole thickenss of bowel is involved with skin lesions in ?Crohn diseaseUlcerative colitisIrritable bowel diseaseBoth Crohns and ulcerative colitis  <response>: Davidson;s principles and practice of medicine 22nd edition. In crohn;s disease there the entire wall of bowel is oedematous and thickened involving terminal ileum ,right side colon,jejunum. 