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Age / Sex : 57 / F
Age/Sex: 57/F
C.C.: Left elbow pain for 20 days
NO trauma HX
1) What is your impression?
Courtesy : YEON HEE OH, MD., DONGGUK UNIVERSITY GYEONGJU HOSPITAL
Diagnosis: fat necrosis
Discussion
Findings:
- In lateral side of the left elbow, a small mass lesion noted in subcutaneous layer.
Coronal, axial and sagittal T1&T2WI show a lesion has central high SI and low SI rim.
- Coronal and axial fat-suppressed T1-Fatsat enhanced images show lesion is hypointense with irregular rim enhancement.
Diagnosis: fat necrosis
Discussion:
- It may be easier to diagnose superficial fat necrosis using imaging than fat necrosis in nonsuperficial sites and avoid biopsy for several reasons. First, the location of the lesion is subcutaneous . Second, the location tends to appear as a globular or laminated mass with a central fatty intensity and a hypointense rim.
References:
1) Chan LP., Gee R., Keogh C., Munk PL. Imaging features of fat necrosis. AJR 2003; 181:955-959
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