True regarding ulcerative colitis is ?
Ulcerative colitis is a disease of the rectum and colon. In ulcerative colitis colonic inflammation is diffuse, confluent and superficial, primarily affecting the mucosa and superficial mucosa. Skip lesions are seen in Crohn's disease. Reference : Bailey & Love 27th Edition, page no = 1267.
Involves only mucosa
Involves perianal region
Skip lesion seen
Most commonly involve small intestine
G.I.T