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Case#16 History:
Young female patient with painful forearm, no skin
lesions. Radiographs were negative. MRI was obtained
(see below).
Imaging Studies:
- MRI: T1
weighted and fat-saturated post-contrast here
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1st
MR image is a T1 weighted axial image through
the proximal forearm (near the elbow) showing
a heterogeneous mass-like lesion involving the
muscle groups. The bright portion of the
malformation represents fatty tissue, and gray
color portion (minimally brighter than muscle)
represent a vascular portion of the
malformation. 2nd image is a fat-suppressed T1
weighted image following intravenous contrast
injection demonstrating a typical contrast
enhancement pattern in association with
suppression of the fatty signal. This is
a very nice example to demonstrate the fact
that significant number vascular anomalies
(both high- and low-flow malformations)
demonstrate increased fatty tissue. |
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This
is a radiographic image acquired during
sclerotherapy. Contrast injection into the
malformation outlines the malformation with
rounded filling defects representing
phleboliths. Management in these patients does
not differ from other low-flow venous or
lymphatic lesions. This patient was
successfully treated with sclerotherapy.
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Diagnosis:
Venous
Malformation ("Cavernous hemangioma") with a
fatty component
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