Large lipoma or something more ominous?

This patient had a soft tissue mass in the leg. No pain or tenderness. 

Ultrasound using high frequency probe revealed a soft tissue mass within the subcutaneous plane. 

Here are some panoramic views:

What we found:

Indeed the mass has the lobulation and echogenicity of a fatty tissue, or lipoma. 

 We  did some color Doppler ultrasound and found a few small vessels passing into the mass.

The color and power Doppler ultrasound are not unusual, but a large soft tissue mass like a lipoma would usually have little or no vascularity. 

Let's have a look at the spectral Doppler ultrasound:

Again nothing out of the way. There are both low amplitude flow waveforms, both arterial and venous. 

Finally we concluded that this mass is indeed a lipoma. 

Final diagnosis: lipoma.

Have advised further investigation like MRI scan to confirm and rule out malignancy.

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Sonography of lipoma