Salivary glands
Other tumors
Inflammatory myofibroblastic tumor

Topic Completed: 1 September 2012

Revised: 29 April 2019

Copyright: 2003-2019,, Inc.

PubMed Search: Inflammatory myofibroblastic tumor salivary

Adriana Handra-Luca, M.D.
Page views in 2019: 429
Page views in 2020 to date: 29
Cite this page: Handra-Luca A. Inflammatory myofibroblastic tumor. website. Accessed January 28th, 2020.
Definition / general
  • Uncommon salivary gland tumor of myofibroblasts and chronic inflammatory cells; benign behavior at this site
  • Some cases are neoplastic
  • Also called inflammatory pseudotumor; formerly called plasma cell granuloma
  • Usually > 50 years, males
  • Parotid gland most common salivary gland site
Clinical features
  • Recurrent painful swelling
Case reports
  • Surgical resection
Gross description
  • Firm nodules, homogeneous yellow-gray
Microscopic (histologic) description
Microscopic (histologic) images

Images hosted on other servers:

Multinodular tumor with thick fibrous bands, plasma cells, lymphocytes, spindle cells in poorly formed fascicles, smooth muscle actin+

Various images

Cytology description
  • Groups of spindle cells without cytologic atypia, inflammatory cells, foamy histiocytes (Acta Cytol 2004;48:574)
Differential diagnosis
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