64-year-old male with palpable mass right leg. In the region of palpable abnormality anteriorly in the left leg there is a hypoechoic and complex-appearing well-demarcated region measuring 1.2 x 3.0 x 4.5 cm. This appears to have a increased through transmission consistent with complex fluid. Therefore leading considerations would be subcutaneous hematoma or abscess. There may be slight surrounding increased vascularity. There is diffuse edema in soft tissues, although both legs demonstrate edema diffusely.
Findings most suggestive of complex fluid collection in the anterior right lower leg. Primary differential consideration is subacute hematoma. Abscess cannot be excluded. By appearance and history, other mass is considered unlikely.