Bronchial bleeding caused by recurrent pneumonia after radical esophagectomy for esophageal cancer

Figure 4 Intraoperative findings. A: The presence of a collateral bronchial artery (BA) arising from the right inferior phrenic artery running along the phrenic nerve (green arrowheads) was confirmed; the tissue was black in color due to the first bronchial arterial embolization procedure (yellow arrowheads). B: Engorged right BAs streaming into the right middle lobe were dissected at the level of bifurcation of the middle lobe bronchus (arrows). UL: Upper lobe; ML: Middle lobe; LL: Lower lobe; Br: Middle lobe bronchus; PA: Pulmonary artery; PV: Pulmonary vein.