Figure 2H and 2I: Normal MR imaging planes and appearance of BP. H-I, At the level of pectoralis muscles, major (PMA) (solid star) and minor (PMI) (open star) in retropectoralis minor space (yellow line in between the PMI and anterior chest wall) and lateral to the first rib where the subclavian vessels have become the axillary vessels (open arrow). Oblique sagittal fat-suppressed T2-weighted (F) and T1-weighted (G) images show the three cords (white arrows), lateral cord (LC) is anterior, posterior cord (PC) is superior, and medial cord (MC) is posterior to the axillary artery (A) and vein (V).