Home > E. Pathology by systems > Digestive system > Small intestine > intestinal mucosa

intestinal mucosa

Monday 15 November 2004

Components

- intestinal villi

  • intestinal surface epithelium
  • intestinal villi lamina propria

- intestinal crypts
- intestinal lamina propria
- intestinal muscularis mucosae

Lesions

- architectural anomalies

  • intestinal villous atrophy
    • hyperplastic intestinal villous atrophy (increased crypt depth)
    • hypoplastic intestinal villous atrophy (decreased crypt depth)

- surface epithelium anomalies

  • enterocyte anomalies
    • enterocyte shape
    • enterocyte brush border (presence/absence)
    • tufted superficial cells
    • syncitial enterocytes
    • stainable iron enterocytes
    • vacuolated enterocytes (epithelial vacuolization)
    • enterocytes macrocytosis
  • intraepithelial lymphocytes increase
  • intraepithelial granulocytes
  • microulcerations

- intestinal crypts anomalies

  • intestinal crypt hyperplasia
  • intestinal crypt abcesses
  • intestinal focal crypt necrosis
  • Paneth cell anomalies
    • Paneth cell hyperplasia
    • Paneth cell absence
    • Paneth cell morphologic anomalies
  • intestinal endocrine cells hyperplasia
  • intestinal endocrine cells absence

- intestinal lamina propria anomalies

  • intestinal cellular infiltration
    • intestinal neutrophilic
    • intestinal eosinophilic
    • intestinal lymphocytic
    • intestinal plasmacytic
    • intestinal histiocytic
      • intestinal PAS-positive histiocytic
      • intestinal atypical histiocytic
  • intestinal lymphoid depletion (intestinal plasmacytic depletion)
  • intestinal abscesses
  • intestinal granulomas
  • intestinal follicular lymphoid hyperplasia
  • intestinal lymphangiectasia
  • dense collagen band beneath the intestinal surface epithelium
  • intestinal amorphous eosinophilic deposition
  • intestinal amyloid deposition (intestinal amyloidosis)

Portfolio

  • Intestinal mucosa in Anderson disease
  • Intestinal mucosa biopsy