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Tubular adenoma versus villous adenoma

Tubular adenoma Common Small Low risk of malignancy Can be on long stalk Villous adenoma  10% of adenomatous polyps Broad based, ‘sessile’ o...

Tubular adenoma
  • Common
  • Small
  • Low risk of malignancy
  • Can be on long stalk
Villous adenoma 
  • 10% of adenomatous polyps
  • Broad based, ‘sessile’ over 2 cm
  • Frond-like projections
  • Associated with mucous production, which may cause diarrhoea or electrolyte depletion