Figure 26. Carpal tunnel syndrome. Photograph (bottom right) shows the area scanned. Sagittal US scans show swelling of the proximal portion of the median nerve (arrows) in the right wrist (RT) in a 45-year-old woman. Color Doppler US shows increased vascularity in the swollen part of the nerve. Compare with the normal median nerve (arrowheads) in the left wrist (LT).