The contrast medium extravasation may have several appearances, namely: linear, stream, whirl, ellipsoid, or it may also occupy the entire luminal thickness of the bowel loop, and in such case one should be careful not to confuse the intraluminal extravasation[ncbi.nlm.nih.gov]
There are many possible causes of gi bleeding, including hemorrhoids peptic ulcers tears or inflammation in the esophagus diverticulosis and diverticulitis ulcerative colitis and crohn's disease colonic polyps cancer in the colon, stomach or esophagus[icd10data.com]
[…] non-contrast-enhanced phase, either with or without enhancement after intravenous injection of the contrast medium; f) presence of tumor lesion in the gastrointestinal wall; g) signs of other GIB causes, such as vascular malformation, abnormally enhanced polyp[ncbi.nlm.nih.gov]
There are many possible causes of gi bleeding, including hemorrhoids peptic ulcers tears or inflammation in the esophagus diverticulosis and diverticulitis ulcerative colitis and crohn's disease colonic polyps cancer in the colon, stomach or esophagus[icd10data.com]
CT angiography can accurately determine the four main causes of lower GIB (angiodysplasia, colonic diverticulum, neoplasms and colitis), providing guidance for specific treatment.[ncbi.nlm.nih.gov]
Abstract Gastrointestinal bleeding represents a common medical emergency, with considerable morbidity and mortality rates, and a prompt diagnosis is essential for a better prognosis.[ncbi.nlm.nih.gov]