Embryology and Congenital Malformations The ascending and transverse colon, along with the small intestine, are part of the embryologic midgut, which undergoes marked elongation beginning in the 6th week of fetal development. To accommodate this increased length, the midgut herniates…
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KEY FACTS Terminology Spectrum of hereditary and nonhereditary polyposis syndromes characterized by gastrointestinal (GI) tract polyps and other associated lesions Imaging CT enterography is best imaging tool (multiplanar, contrast enhanced) Best diagnostic clue Cluster of small filling defects in small…
KEY FACTS Terminology Isolated small bowel transplant (SB Tx) is primarily for "short gut syndrome" Multivisceral Tx (SB, liver, ± pancreas, ± part of stomach) Usually for liver failure due to chronic total parenteral nutrition (TPN) Donor bowel has copious…
KEY FACTS Terminology Damage of small bowel or colonic mucosa and wall due to therapeutic or excessive irradiation You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a…
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KEY FACTS Terminology Small bowel (SB) ischemia resulting from mesenteric arterial or venous narrowing or occlusion, leading to inadequate supply of nutrients and oxygen Imaging Best imaging tool CT angiography; multiplanar reformations; water for oral contrast Catheter angiography for confirmation…
KEY FACTS Terminology Pneumatosis is descriptive sign, not disease or diagnosis Cystic or linear collections of gas in subserosal or submucosal layers of GI tract wall Pneumatosis intestinalis: Most common form of intramural gas, found in small bowel more often…
KEY FACTS Terminology Focal stricture(s) in small bowel (SB) due to NSAID use You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here