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LGIB
[lower GI]
distal to  lig. Treitz

[etuology]
1. diverticulosis     33%
2. polyps/cancer   19%
3. colitis/ulcer        18%
4. un-know             16%
5. angiodysplasia   8%

[common cause]
a. Diverticulosis
b. angiodysplasia
c. ischemia
d. infection
e. IBD
f.  polpys/CA
g. hemorrhoid
h. ulcer




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