Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Case Reports
. 2015 Dec 7;3(2):164.
doi: 10.2484/rcr.v3i2.164. eCollection 2008.

Lipoma Arborescens of the Knee in a 17-Year-Old Man

Benjamin E Plotkin, Rajeev Varma
Case Reports

Lipoma Arborescens of the Knee in a 17-Year-Old Man

Benjamin E Plotkin et al. Radiol Case Rep. .

Abstract

We present a case of lipoma arborescens of the knee in a 17-year-old man, discuss its characteristic imaging findings, and review the relevant differential diagnoses.

Keywords: MRI, magnetic resonance imaging; PVNS, pigmented villonodular synovitis; STIR, short tau inversion recovery.

PubMed Disclaimer

Figures

Figure 1
Figure 1
Lipoma arborescens in a 17-year-old man. Lateral radiograph of the knee shows a large mass within the suprapatellar region with areas of soft tissue and fat density.
Figure 2
Figure 2
Lipoma arborescens in a 17-year-old man. Sagittal T1 weighted MRI shows a large suprapatellar effusion with a frond-like synovial mass of fat intensity.
Figure 3
Figure 3
Lipoma arborescens in a 17-year-old man. Sagittal proton density MRI shows the large high-signal effusion with synovial proliferation.
Figure 4
Figure 4
Lipoma arborescens in a 17-year-old man. Sagittal STIR MRI shows the synovial mass to be the same low intensity as fat.
Figure 5
Figure 5
Lipoma arborescens in a 17-year-old man. Axial gradient echo MRI shows the characteristic frond-like pattern.
Figure 6
Figure 6
Lipoma arborescens in a 17-year-old man. Coronal T1 fat-suppression MRI following gadolinium injection shows no enhancement of the synovial mass but enhancement of the effusion.
Figure 7
Figure 7
Lipoma arborescens in a 17-year-old man. Sagittal T1 fat-suppression MRI following gadolinium injection shows no enhancement of the synovial mass but enhancement of the effusion.
See this image and copyright information in PMC

References

    1. Sheldon PJ, Forrester DM, Learch TJ. Imaging of Intraarticular Masses. Radiographics. 2005; Jan-Feb;25(1):105–119. [PubMed] - PubMed
    1. Ryu KN, Jaovishida S, Schweitzer M, Motta AO, Resnick D. MR Imaging of Lipoma Arborescens of the Knee Joint. Am J Roentgenol. 1996; Nov;167(5):1229–1232. [PubMed] - PubMed
    1. Murphey MD, Carroll JF, Flemming DJ, Pope TL, Gannon FH, Kransdorf MJ. Benign Musculoskeletal Lipomatous Lesions. Radiographics. 2004 Sep-Oct;24(5):1433–1466. [PubMed] - PubMed
    1. Vilanova JC, Barceló J, Villalón M, Aldomà J, Delgado E, Zapater I. MR Imaging of Lipoma Arborescens and the Associated Lesions. Skeletal Radiol. 2003 Sep;32(9):504–509. [PubMed] - PubMed
    1. Kloen P, Keel SB, Chandler HP, Geiger RH, Zarins B, Rosengerg AE. Lipoma Arborescens of the Knee. J Bone Joint Surg (Br) 1998 Mar;80(2):298–301. [PubMed] - PubMed

Publication types

LinkOut - more resources