Fig. 5
From: A panorama of radial nerve pathologies- an imaging diagnosis: a step ahead
a High-resolution ultrasound image of a patient who had history of penetrating injury distal to the elbow. SCAR denotes the hypoechoic scar tissue formed within soft tissue at the site of injury. The posterior interosseous nerve (PIN) is normal at the level of local scar. b Image shows discontinuity in posterior interosseous nerve in the forearm with formation of hypoechoic scar tissue (stars), distal to the site of scar on skin. The nerve (arrowheads) is of normal calibre proximally and distally