Salivary glands
Nonneoplastic tumors/tumor-like conditions
Adenomatoid hyperplasia and sialadenosis


Topic Completed: 1 August 2011

Minor changes: 7 April 2021

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F. Zahra Aly, M.D., Ph.D.
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Cite this page: Aly FZ Adenomatoid hyperplasia and sialadenosis. PathologyOutlines.com website. https://www.pathologyoutlines.com/topic/salivaryglandsadenomatoidhyperplasia.html. Accessed April 16th, 2021.
Definition / general
  • Presents as submucosal nodule or mass; may be hyperplastic or hamartomatous in nature
  • Usually hard palate, also retromolar but may occur anywhere in the oral cavity
  • Called sialadenosis in major salivary glands
  • Etiology unknown; in major salivary glands, sialadenosis is associated with metabolic conditions
Microscopic (histologic) description
  • Coalescing lobules of normal mucinous acini
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