Communication: Discussion Board: Quiz #6 Results
  1. Absence of peristalsis in the body of the esophagus and failure of the lower esophageal sphincter to relax in response to swallowing is called:
    Achalasia

  2. Columnar metaplasia of the esophageal squamous epithelium in response to chronic gastro-esophageal reflux is referred to as:
    Barrett esophagus

  3. Communication between the trachea and esophagus is called:
    Tracheoesophageal fistula

  4. The large majority of cancers of the esophagus are histologically classified as:
    Squamous cell carcinoma

  5. Name the most common cause of chronic (non-erosive) gastritis. It is also an important factor in the pathogenesis of peptic ulcer disease.
    Helicobacter pylori

  6. Name a disease that is typically found in the distal stomach and proximal duodenum.
    Peptic ulcer disease

  7. Name an inflammatory bowl disease in which the mucosal surface of the colon is covered by irregular plaques composed of necrotic debris and an acute inflammatory exudate. Clostridium difficile is the offending organism.
    Pseudomembranous colitis

  8. The mucosal (inner) surface of the large bowel exhibites a distinct "cobblestone" appearance and microscopic examination reveales ulcers and transmural inflammation with granulomas. The most appropriate diagnosis is:
    Crohn disease

  9. Most carcinomas of the colon are believed to arise in preexisting lesions. Name these lesions.
    Adenomatous polyps

  10. Name an autosomal dominant trait which inevitably leads to carcinoma of the colon by age 40 unless a total colectomy is performed.
    Familial adenomatous polyposis