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A. Ultrasound reveals features of subcutaneous edema with skin thickening with increase in echogenicity of subcutaneous tissue. Fluid is observed as intervening hypoechoic lines (white arrows) in subcutaneous tissue. B. Ultrasound with color Doppler also reveals ill-defined hypoechoic fluid collection with heterogeneous content within site of inflammation. Hyperemia of subcutaneous tissue surrounding collection is noted.
