Small Bowel CT Appearances

Villous Adenoma CT Findings

• Usually a solitary carpet lesion
• Sessile filling defect with irregular mucosal pattern
• 10+ lobules
• Usually > 3cm, may grow as large as 15cm

Other Information About Villous Adenoma

Etiology:

• Unknown

Epidemiology:

• Typically presents after age 50 with colorectal cancer screening
• True epidemiology is unknown

Presentation:

• Typically asymptomatic and discovered incidentally at colonoscopy

Prognosis:

• Villous adenomas are benign but premalignant