Template:Lower GI bleeding DDX: Difference between revisions

(Created page with "*Upper GI Bleeding *Diverticular disease **Painless bleeding **Up to 90% of episodes resolve spontaneously **Can result in massive hemorrhage *Vascular ectasia **Angiodysp...")
 
 
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===[[Undifferentiated lower gastrointestinal bleeding]]===
*[[Upper GI Bleeding]]
*[[Upper GI Bleeding]]
*Diverticular disease
*Diverticular disease
**Painless bleeding
**[[Diverticulosis]]
**Up to 90% of episodes resolve spontaneously
**[[Diverticulitis]]
**Can result in massive hemorrhage
*Vascular ectasia / angiodysplasia
*Vascular ectasia
**Angiodysplasia, AVM
*[[Inflammatory bowel disease]]
*[[Inflammatory bowel disease]]
*Colitis
*Infectious [[colitis]]
**Infectious
*[[Mesenteric Ischemia]] / [[ischemic colitis]]
**[[Mesenteric ischemia|Ischemic]]
***90% of cases occur in age >70yo
***Colon is predisposed to ischemia due to poor vascular ciculation, high bacterial count
***Causes: aneurysmal rupture, vasculitis, hypercoagulable, CV insult, IBS, slow motility
***Most cases resolve on own; 20% of cases requires surgical intervention
*[[Mesenteric Ischemia]]
**Medical emergency that often leads to bowel necrosis
**Causes: thrombosis/embolism of SMA, mesenteric vein thrombosis, low arterial flow
**Associated w/ A fib, CHF, MI, age >60yo
**CT only 64% Sn, angiography is imaging study of choice
*[[Meckel's diverticulum]]
*[[Meckel's diverticulum]]
*Malignancy / polyps
*[[Colorectal cancer]] / polyps
*[[Hemorrhoids]]
*[[Hemorrhoids]]
**Massive hemorrhage is unusual
**[[Internal hemorrhoid]]
*Aortoenteric fisulta (after AAA repair)
**[[External hemorrhoid]]
**Low grade fever, abd pain, back pain, h/o graft, BRBPR
*[[Aortoenteric fistula]]
*Foreign body
**Nearly 100% mortality if untreated
**Consider in patients with gastrointestinal bleeding and known abdominal aortic aneurysms or aortic grafts
*[[Rectal foreign body]]
*Rectal ulcer ([[HIV]], [[Syphilis]], [[STI]])
*Rectal ulcer ([[HIV]], [[Syphilis]], [[STI]])
*[[Anal fissure]]
*[[Anal fissure]]

Latest revision as of 19:26, 7 February 2024

Undifferentiated lower gastrointestinal bleeding

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