Morel-Lavallée lesion of the thigh: characteristic findings on US

A 12-year-old boy presented for evaluation 3 weeks after an ATV accident. Although no traumatic injury was initially noted, he developed progressive left thigh swelling and blisters 2 weeks after the injury. US identified a collection in the subcutaneous tissues with hyperechoic material (arrowheads) along the wall (Fig. 1). Serous collections were drained… CONTINUE READING