IBD, IBS, Diverticular Disease & Common Anorectal Disorders Flashcards
two major types of IBD
Ulcerative colitis
Crohn’s disease
endoscopic changes of backwash ileitis
ulcerative colitis (macroscopic)
mucosa is erythematous and has a fine granular surface that resembles sandpaper
mild inflammation (UC)
mucosa is hemorrhagic, edematous and ulcerated
more severe disease (UC)
induce transmural granulomatous inflammation that resembles CD
TH1
induce superficial mucosal inflammation resembling UC
TH2
responsible for neutrophilic recruitment
TH17
diarrhea rectal bleeding tenesmus passage of mucus crampy abdominal pain
ulcerative colitis
toxic colitis
severe pain and bleeding
megacolon
hepatic tympany
glycoprotein present in activated neutrophils, is highly sensitive and specific marker for detecting intestinal inflammation
fecal lactoferrin
present in neutrophils and monocytes and levels correlate well with histologic inflammation, predict relapses, and detect pouchitis
fecal calprotectin
used frequently to rule out active inflammation versus symptoms of irritable bowel or bacterial overgrowth
fecal lactoferrin
calprotectin
transverse or right colon with a diameter of >6cm, with loss of haustration in patients with severe attacks of UC
toxic megacolon
most dangerous of the local complications
perforation
transmural process
CD
cobblestone appearance endoscopically and by barium radiography
CD
earliest lesions of CD
aphthoid ulcerations
focal crypt abscesses with loose aggregations of macrophage
fibrostenotic obstructing pattern
penetrating fistulous patter
CD
most common site of inflammation in CD
terminal ileum
string sign on barium studies results from a severely narrowed loop of bowel
ileocolits
enterovesical fistulas typically present as
dysuria or
recurrent bladder infections or
less commonly:
pneumaturia or fecaluria
extensive inflammatory disease associated with a loss of digestive and absorptive surface, resulting in malabsorption and steatorrhea
jejunoileitis
increased anti-Saccharomyces cerevisiae antibodies (ASCAs)
CD