【Chris】評論

 Angiodysplasia2 nd  MCC Hematochezia, with diverticulosis being #1.  It’s in the cecum b/c law of Laplace (wall stress and radius). The diameter of the cecum is bigger than any other part of the colon.  B/c the diameter is greater, the wall stress is greater.  Therefore, putting stress on the vessels in the wall of the cecum, it actually pulls them apart and produces telangiectasias.  As a result, it predisposes to angiodysplasia b/c increased wall stress.  If one of them ruptures to the surface, you can end up with significant bleed.   A very common cause of Hematochezia in older pe...