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Year : 2016  |  Volume : 5  |  Issue : 4  |  Page : 281-283

Extraosseous fat-fluid level on computed tomography and magnetic resonance imaging: A specific sign of hematogenous osteomyelitis

Department of Radiodiagnosis, Maharishi Markandeshwar Institute of Medical Sciences and Research, Mullana, Ambala, Haryana, India

Correspondence Address:
Dr. Puneet Mittal
448, Opp. Singla Memorial Hospital, Prem Basti, Sangrur - 148 001, Punjab
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2278-344X.194135

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Extraosseous fat-fluid level is a rare but specific sign of hematogenous osteomyelitis. It results due to marrow necrosis due to infection with the release of fat globules and pus which extends into periosseous tissues through bony erosions. To form a fat-fluid level, the marrow necrosis has to be extensive which is not always present. However, when present and in appropriate clinical settings, it is fairly specific for hematogenous osteomyelitis. We describe radiographic, computed tomography, and magnetic resonance imaging findings in a case of osteomyelitis with extraosseous fat globules and fat-fluid level.

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