25 IBD




Ulcerative Colitis

ulcers in colons
not full thickness

always rectal: LUQ pain


an ulcer healing, scar tissue raised up and looks like polyps


neutrophils everywhere
Extra-intestinal

ulcers in skin
number of autoimmune diseases cause uveitis (RA e.g.)
lower back pain and joint stiffness, at night

colon stops contraction

toxic: fever and shock


Crohn's


terminal ileum
B12, bile salts absorbed in ileum
increased risk of gallstones, also secretory diarrhea (draw fluid), and steatorea from fat
terminal ileum: RLQ pain



stones: normal mucosa
fissures: transmural inflammation

transmural inflammation spread outside the wall and to other places (bladder, skin)

fat wrapped around bowel


ExtraIntestinal


lower back pain and joint stiffness at night
Immunology

Smoking

Treatment




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