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The most common cause of non-duodenal intestinal atresia is a vascular accident in utero that leads to decreased intestinal perfusion and ischemia of the respective segment of bowel. [3] This leads to narrowing, or in the most severe cases, complete obliteration of the intestinal lumen .
Duodenal atresia is the congenital absence or complete closure of a portion of the lumen of the duodenum. It causes increased levels of amniotic fluid during pregnancy (polyhydramnios) and intestinal obstruction in newborn babies. Newborns present with bilious or non-bilous vomiting (depending on where in the duodenum the obstruction is) within ...
The small intestine forms loops (B2) and slides back into the abdomen (B3) during resolution of the hernia. Meanwhile, the cecum moves from the left to the right side, which represents the additional 180° counterclockwise rotation of the intestine (C, central view). [4] The exact cause of intestinal malrotation is unknown.
Annular pancreas is a rare condition in which the second part of the duodenum is surrounded by a ring of pancreatic tissue continuous with the head of the pancreas.This portion of the pancreas can constrict the duodenum and block or impair the flow of food to the rest of the intestines.
Strømme syndrome is a very rare autosomal recessive genetic condition characterised by intestinal atresia (in which part of the intestine is missing), eye abnormalities and microcephaly. The intestinal atresia is of the "apple-peel" type, in which the remaining intestine is twisted around its main artery.
Intussusception is a medical condition in which a part of the intestine folds into the section immediately ahead of it. [1] It typically involves the small intestine and less commonly the large intestine. [1] Symptoms include abdominal pain which may come and go, vomiting, abdominal bloating, and bloody stool. [1]
Other causes include damage to the small intestine from other means and being born with an abnormally short intestine. [1] It usually does not develop until less than 2 m (6.6 ft) of the normally 6.1 m (20 ft) small intestine remains. [1] [3] Treatment may include a specific diet, medications, or surgery. [1]
Ogilvie syndrome, or acute colonic pseudo-obstruction, is the acute dilatation of the colon in the absence of any mechanical obstruction in severely ill patients. [1]Acute colonic pseudo-obstruction is characterized by massive dilatation of the cecum (diameter > 10 cm) and right colon on abdominal X-ray.