GI tract, liver, and pancreas pathology with classic histologic findings, inflammatory bowel disease patterns, and hepatic disease morphology. Original cards testing the underlying concepts.
40 cards · basic cards · AI-written, checked twice. Edit anything.
- What type of epithelial change defines Barrett esophagus?
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Replacement of normal stratified squamous epithelium with metaplastic columnar epithelium containing goblet cells (intestinal metaplasia).
- Barrett esophagus significantly increases the risk of which cancer?
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Esophageal adenocarcinoma.
- Achalasia is caused by loss of inhibitory ganglion cells in the ____, preventing the lower esophageal sphincter from relaxing.
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myenteric (Auerbach) plexus
- What underlying condition causes esophageal varices?
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Portal hypertension, which dilates submucosal veins in the lower esophagus.
- What is Boerhaave syndrome?
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A transmural rupture of the esophagus, usually caused by forceful vomiting.
- What is Mallory-Weiss syndrome?
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Mucosal, non-transmural lacerations at the gastroesophageal junction caused by forceful vomiting.
- What are the two major risk factors for esophageal squamous cell carcinoma?
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Alcohol use and tobacco use.
- In which part of the esophagus does adenocarcinoma typically arise?
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The lower third, usually from preexisting Barrett esophagus.
- A Curling ulcer is classically associated with which clinical setting?
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Severe burns.
- A Cushing ulcer is classically associated with which clinical setting?
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Increased intracranial pressure.
- H. pylori infection is most strongly associated with which histologic type of gastric adenocarcinoma?
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Intestinal-type gastric adenocarcinoma.
- Menetrier disease is characterized by massive hyperplasia of gastric mucous cells, producing ____.
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giant, hypertrophied rugae
- What histologic feature defines a signet ring cell in gastric carcinoma?
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A large intracytoplasmic mucin vacuole that pushes the nucleus to the periphery of the cell.
- What small bowel histologic findings are seen in celiac disease?
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Villous atrophy with crypt hyperplasia and increased intraepithelial lymphocytes.
- Which antibody is used to screen for celiac disease?
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Anti-tissue transglutaminase IgA.