<unk>  or gangrenous<unk>  represents an irreversible injury to the intestine resulting from insufficient blood flow. It is considered a medical emergency because it can quickly result in life-threatening infection and death. Any cause of<unk>  ischemia, the earlier reversible form of injury, may ultimately lead to<unk>  if uncorrected. The causes of<unk>  ischemia or<unk>  include primary vascular causes (for example, mesenteric ischemia) and other causes of<unk>  obstruction.
Bowel infarction
Intestinal ischemia
Splenic infarction
Bowel obstruction
Gastrointestinal perforation
Intestinal pseudo-obstruction
Ischemic colitis
Gallstone ileus