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Review article


Traumatic Extra-capsular and Intra-capsular Floating Fat: Fat-fluid Levels of the Knee Revisited.

Derik L DavisPrasann Vachhani
Date of Submission: 15-Sep-2015, Date of Acceptance: 29-Oct-2015, Date of Web Publication: 30-Nov-2015.
Corresponding Author:
Corresponding Author

Derik L Davis

Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, 22 S. Greene Street, Baltimore, Maryland 21201, USA.
E-mail: ddavis7@umm.edu

Corresponding Author:
Corresponding Author

Derik L Davis

Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, 22 S. Greene Street, Baltimore, Maryland 21201, USA.
E-mail: ddavis7@umm.edu

DOI: 10.4103/2156-7514.170729 Facebook Twitter Google Linkedin

ABSTRACT


Floating fat is a sign of acute bone injury at the knee following trauma. The goal of this article is to review the etiology, patterns, and mimickers of extra-capsular and intra-capsular floating fat, with the major emphasis on knee trauma in the acute setting. We will discuss the spectrum of multimodal imaging findings for rare presentations of extra-capsular floating fat, and contrast these with common and atypical forms of intra-capsular lipohemarthrosis, as an aid to the assessment of acute bone trauma at the knee.
Keywords: Extra-capsular, Floating Fat, Knee, Lipohemarthrosis, Trauma

Cited in 1 Document

  1. Segen Aklilu, Gregor M. Dunham and Felix S. Chew (2018) Traumatic lipohemobursa of the infrapatellar bursa. Radiology Case Reports 13(2):513. doi: 10.1016/j.radcr.2017.12.004

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