Oral cavity & oropharynx
Sarcoma
Kaposi sarcoma


Topic Completed: 1 November 2013

Revised: 24 May 2019

Copyright: 2002-2019, PathologyOutlines.com, Inc.

PubMed Search: Kaposi sarcoma oral cavity[mh]

Nat Pernick, M.D.
Page views in 2018: 464
Page views in 2019 to date: 192
Cite this page: Pernick N. Kaposi sarcoma. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/oralcavityks.html. Accessed June 25th, 2019.
Definition / general
  • Associated with HIV
  • Oral lesion may be first sign of disease
  • Usually palate
Case reports
Gross description
  • Small, well delineated macular lesions or larger infiltrative nodules
Microscopic (histologic) description
  • Diffuse infiltration by irregularly dilated, jagged vascular channels dissecting collagen, growing around preexisting normal vessels
  • Newly formed vascular channels may be dilated; endothelium is flat, nonmultilayered, no marked atypia and no prominent mitotic activity
  • Frequent lymphoplasmacytic infiltrate with inflammatory cells aggregating around vessels
Microscopic (histologic) images

Images hosted on other servers:

Tongue mass, H&E, CD31 and HHV8 DNA in tumor

Negative stains
Differential diagnosis
Back to top