Human pathology

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intestinal mucosa

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Intestinal mucosa in Anderson disease Intestinal mucosa biopsy

Components

- intestinal villi

- intestinal crypts
- intestinal lamina propria
- intestinal muscularis mucosae

Lesions

- architectural anomalies

- surface epithelium anomalies

  • 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)