Figure 8. Traumatic neuroma. A 73-year-old woman underwent a forearm operation because of a median nerve schwannoma (open arrows, lower right image). One month later, she complained of persistent discomfort over the scar region, with a positive Tinel sign. Photograph (upper right) shows location of trauma. US scans (left images) show a hypoechoic structure with irregular margins (arrowheads) surrounding the median nerve (arrows), demonstrating scar tissue infiltration of the median nerve. Sag = sagittal, Tr = transverse.