Ultrasound illustration of the MACN and the adjacent anatomy at 6 cm proximal to the medial epicondyle in a 33-year-old man. Left side of the image is radial (lateral) side of the arm. MACN, medial antebrachial cutaneous nerve; MN, median nerve; BA, brachial artery; BV, basilic vein; BF, brachial fascia.