lymphoepithelial cyst


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  • Clinical

    • location
      • parotid
      • upper cervical node
      • often bilateral
    • association
      • HIV
  • Gross

    • multiloculated
  • Histology

    • epithelium
      • glandular
      • squamous
    • follicles, germinal centers
    • if HIV:
      • increased dendritic reticular cells
      • intrafollicular CD8+ lymphocytes
  • Ddx

    • branchial cleft cyst
      • lateral neck
    • cystic warthin tumor
      • oncocytic epithelium