hyperplastic polyp

Expand All | Collapse All
  • Clinical

    • most common in rectum
    • 90% occur in left colon
    • < 0.5 cm
    • tx: if large, on right colon, resembling sessile serrated polyp, then remove completely
  • Histology

    • surface: serrated lumen, hypermature (white) glands
    • base: proliferative, hyperchromatic, lack of serration
    • cytology: mixture of columnar and goblet cells
  • Types

    • microvesicular: most common, typical hyperplastic polyp, mixture of columnar and goblet cells
    • goblet cell: predominantly goblet cells in epithelium
    • mucin-poor: pink, mucin-poor epithelium