Small Bowel CT Appearances

Small Bowel Adenocarcinoma CT Findings

• Diffuse infiltration of a segment of bowel
• Polypoid mass
• Constricting lesion
• Large ulcerating lesion

Other Information About Small Bowel Adenocarcinoma

Etiology:

• Alcohol and/or smoking increase risk
• Diets high in red meat also may increase risk
• Linked to Crohn’s disease, celiac disease, HIV/Aids, Familial adenomatous polyposis (FAP), Peutz-Jeghers Syndrome, and Lynch Syndrome

Epidemiology:

• Typically presents during 6th -7th decades of life
• Slightly more common in males
• More common in patients of African descent

Presentation:

• Typically asymptomatic
• Abdominal pain
• GI bleed & hematochezia
• SBO
• Nausea and/or vomiting
• Diarrhea
• Weight loss
• Anemia
• Jaundice

Prognosis:

• The 5-year relative survival rates are:
  • Localized: 84%
  • Regional: 78%
  • Distant: 42%
  • All SEER staged combined: 69%

Related Lectures:
CT of Small Bowel Tumors: Detection & Classification Part 1
CT Evaluation of Small Bowel Tumors: Detection & Classification - Part 1