Miscellaneous GI Disorders Flashcards

1
Q

IBS criteria

A

recurrent abdominal pain plus 2 or more of the following:

  • improvement with defecation
  • change in frequency of stool
  • change in appearance of stool
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2
Q

pseudodiverticula: what are they, where do they form

A

outpouchings of only mucosa and submucosa (false diverticula); where vasa recta perforate muscularis externa

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3
Q

diverticulosis: what is it, pathogenesis, risk factor

A

many false diverticula of the colon, commonly sigmoid; elevated intraluminal pressure in the sigmoid colon; diets low in fiber

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4
Q

dx: periumbilical pain that migrates to the RLQ

A

acute appendicitis

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5
Q

where does ischemic colitis typically occur? (2)

A

watershed zones: splenic flexure, distal colon

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6
Q

compare collagenous colitis with lymphocytic colitis

A

collagenous colitis has a dense subepithelial collagen layer, lymphocytic colitis is associated with celiac disase and autoimmune diseases

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