Fig. 4From: Ultrasound imaging of the axillaNeurovascular bundle of the axilla. The ulnar nerve (UN), the radial nerve (RN) and the median nerve (MN) wrap the axillary artery (AA) in a clockwise fashion (curved dark arrow) at the axillary base (A). They present a typical honeycomb pattern (yellow dotted line) and can be easily differentiated from the vascular elements using the color/power Doppler (B). V: vein; Hum: humerus; black dotted line: axillary sheathBack to article page