Trunk injury of brachial plexus on MRI Location Damage Upper trunk (%) Middle trunk Số lượng (%) Lower trunk (%) Total (180 trunks of 60 patients) Diarrhea 1 0, 6 0 0 0 0 1 0, 6 Swelling 11 6, 1 9 5, 0 7 3, 9 27 15, 0 Rupture in the sheath 1 0, 6 0 0 0 0 1 0, 6 Rupture 15 8, 3 5 2, 8 4 2, 2 24 13, 3 No damage 34 18, 9 47 26, 1 50 27, 8 131 72, 8 Table 3.28.