crohn's vs colitis Flashcards
ulcerative colitis wall involvement
mucosal and submucosal ulcers
ulcerative colitis location
begins in the rectum and can extend proximally up to the cecum. involvement is continuous. no other sections of the gastro system are involved.
ulcerative colitis symptoms
left lower quadrant pain rectum with bloody diarrhea.
ulcerative colitis inflammation
crypt abscesses and neutrophils
ulcerative colitis gross appearance
pseudopolyps and loss of haustra. looks like lead pipe.
ulcerative colitis complications
toxic megacolon and carcinoma.
what is the risk of ulcerative colitis complications
the length of the disease >10 years. the extent of colonic involvement.
extra intestinal involvement ulcerative colitis
arthritis (peripheral joints, ankylosing spondilitis, sacroilitis, migratory polyarthritis). uvietis, erythema nodosum. pyoderma gangrenosum, primary sclerosing cholangitis, p-ANCA
smoking ulcerative colitis
protects against
crohn’s wall involvement
full-thickness with knife-like fissures,
crohn’s location
anywhere from mouth to anus with skip lesions, terminal ileum is the most common site. rectum is the least common.
crohn’s symptoms
right lower quadrant pain (ileum) with non-bloody diarrhea.
crohn’s inflammation
lymphoid aggregates with granulomas in 40% of cases.
crohn’s gross appearance
cobblestone mucosa, creeping fat and strictures. string sign on imaging
crohn’s complications
malabsorption with nutritional deficiency, calcium oxalate nephrolithiasis, fistula formation, carcinoma.
