- Lipohemarthrosis results from the extrusion of fat and blood from bone marrow into the joint space after an intraarticular fracture.
- Lipohemarthrosis is most common in knee fractures, especially tibial plateau fractures.
 Imaging Findings
- Because fat floats on the associated blood, a fat-fluid level is present and may be shown on radiographs when the image is taken with a horizontal beam.
- Both CT and MRI can provide a more specific assessment than conventional radiography of the composition of joint effusions.
Patient #1: Lateral tibial plateau fracture
Patient #2: MRI image demonstrates an ankle lipohemarthrosis
 See Also
 External Links
- Sorenson, Steven, Gentili, Amilcare, Seeger, Leanne L., Wolfson, Kenneth, Masih, Sulabha. The CT, MRI, and Radiographic Appearance of Lipohemarthrosis. Am. J. Roentgenol. 2001 176: 350