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  Indian J Med Microbiol
 

Figure 4: (a) The examination of arch of aorta shows the origin of left subclavian artery and a lymph node belonging to a metastatic station of head and neck malignancy. (b) The EUS image shows the origin of the left subclavian artery from the arch of the aorta. The formation of the left brachiocephalic vein is observed by the union of the left internal jugular vein and left subclavian vein near the lower part of supraclavicular triangle. In general, the venous system is larger and lies more laterally and is observed beyond the left common carotid artery in this image. The yellow line represents the upper border of aortic arch, and the orange line shows the lowermost point of supraclavicular triangle. (c) The left brachiocephalic vein crosses in front of the left subclavian artery, left common carotid artery, and brachiocephalic trunk to join the right brachiocephalic vein. (d) The aortopulmonary window is not routinely included during imaging from upper esophagus. In linear imaging from upper esophagus, the arch of aorta can be seen which indicates the lower limit of Station 1. An expanding view of linear scope shows multiple lymph nodes in the aortopulmonary window just below the lower border of arch of the aorta. LBCV: Left brachiocephalic vein; LCC: Left common carotid artery; LIJV: Left internal jugular vein; LSCV: Left subclavian vein; BCT: Brachiocephalic trunk; RBCV: Right brachiocephalic vein; LBCA: Left brachiocephalic artery

Figure 4: (a) The examination of arch of aorta shows the origin of left subclavian artery and a lymph node belonging to a metastatic station of head and neck malignancy. (b) The EUS image shows the origin of the left subclavian artery from the arch of the aorta. The formation of the left brachiocephalic vein is observed by the union of the left internal jugular vein and left subclavian vein near the lower part of supraclavicular triangle. In general, the venous system is larger and lies more laterally and is observed beyond the left common carotid artery in this image. The yellow line represents the upper border of aortic arch, and the orange line shows the lowermost point of supraclavicular triangle. (c) The left brachiocephalic vein crosses in front of the left subclavian artery, left common carotid artery, and brachiocephalic trunk to join the right brachiocephalic vein. (d) The aortopulmonary window is not routinely included during imaging from upper esophagus. In linear imaging from upper esophagus, the arch of aorta can be seen which indicates the lower limit of Station 1. An expanding view of linear scope shows multiple lymph nodes in the aortopulmonary window just below the lower border of arch of the aorta. LBCV: Left brachiocephalic vein; LCC: Left common carotid artery; LIJV: Left internal jugular vein; LSCV: Left subclavian vein; BCT: Brachiocephalic trunk; RBCV: Right brachiocephalic vein; LBCA: Left brachiocephalic artery