Ear
External ear tumors - benign / nonneoplastic
Solitary fibrous tumor


Topic Completed: 1 October 2013

Revised: 07 January 2019

Copyright: (c) 2002-2019, PathologyOutlines.com, Inc.

PubMed Search: Solitary fibrous tumor [title] ear


Nat Pernick, M.D.
Page views in 2018: 273
Page views in 2019 to date: 150
Cite this page: Pernick N. Solitary fibrous tumor. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/earSFT.html. Accessed July 22nd, 2019.
Definition / general
  • Slow growing tumor, usually benign, although malignant transformation and metastases have been reported at other sites
  • Very rare in auditory canal
Case reports
Microscopic (histologic) description
  • Fascicular, whorled or haphazard (patternless) arrangement of oval / spindle cells in myxoid or collagenous stroma with inflammatory cells and vascular clefts
  • May have mild atypia or occasional mitotic figures
Microscopic (histologic) images

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Various images

Positive stains
Negative stains
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