Figure 10. Traumatic neuroma. A 56-year-old man had traumatic injuries due to a car accident, including a large laceration over the left thigh that was treated with primary sutures only. Photograph (lower right) shows location of injury. One year later, he complained of a sharply painful sensation over the scar area, with a positive Tinel sign. US scans show a hypoechoic nodule with irregular margins (arrowheads) beside the femoral artery (A) and femoral nerve (arrows). Sag = sagittal, Tr = transverse.