Soft tissue
Adipose tissue
Lipoma arborescens

Author: Charanjeet Singh, M.D. (see Authors page)

Revised: 28 July 2016, last major update June 2012

Copyright: (c) 2002-2016, PathologyOutlines.com, Inc.

PubMed Search: Lipoma arborescens [title]

Cite this page: Lipoma arborescens. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/softtissueadiposelipomaarb.html. Accessed December 6th, 2016.
Definition / General
Terminology
  • Also called villous lipomatous proliferation of synovial membrane, diffuse lipoma of joint
  • Not a WHO diagnosis
Epidemiology
  • Rare
  • Older patients, usually male, associated with joint trauma, degenerative joint disease and chronic arthritis
Clinical Features
Case Reports
Treatment
  • Synovectomy
  • May recur since often is a reactive process
Gross Description
  • Yellow fat in villous fronds
Gross Images

Images hosted on PathOut servers:

Courtesy of Mark R. Wick, M.D.

Micro Description
  • Hypertrophic villous projections of fat lined by synovial cells, variable scattered inflammatory cells
Micro Images

Images hosted on PathOut servers:

Courtesy of Mark R. Wick, M.D.



Images hosted on other servers:

Synovial lined villous proliferation, H&E

H&E