Imaging in Gastroenterology

Intussusception

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Bowel Ischemia

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…

Pneumatosis of the Intestine

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…

Small Bowel NSAID Stricture

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

Intestinal (Angioneurotic) Angioedema

KEY FACTS Terminology Noninflammatory transient edema of intestinal wall due to ↑ vascular permeability and extravasation of intravascular fluid You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are…

Crohn’s Disease

KEY FACTS Terminology Disease of unknown etiology characterized by transmural inflammation of GI tract Imaging CT and MR enterography have supplanted most barium studies for diagnosis in adults and children Faster to perform, less operator dependent, more sensitive and specific…

Mastocytosis

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Whipple Disease

KEY FACTS Terminology Rare systemic disease caused by Tropheryma whipplei infection leading to multiple systemic manifestations, including chronic diarrhea and malabsorption You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If…

Intestinal Lymphangiectasia

KEY FACTS Terminology Primary intestinal lymphangiectasia (Waldmann disease) Rare congenital disorder characterized by hypoproteinemia, peripheral edema, and lymphocytopenia resulting from loss of lymphatic fluid into intestine Important cause of protein-losing enteropathy Secondary: Much more common Causes include mesenteric or retroperitoneal…