During the dissection of a 72-year old male cadaver,the hemiazygos vein(HAV)coursing the left side that drains into the persistent left superior vena cava was observed.The HAV was formed at the junction of the 9th to ...During the dissection of a 72-year old male cadaver,the hemiazygos vein(HAV)coursing the left side that drains into the persistent left superior vena cava was observed.The HAV was formed at the junction of the 9th to 11th right posterior intercostal veins,right subcostal vein,5th to 11th left posterior intercostal veins,and left subcostal vein;then ascended posteriorly to the thoracic aorta.After collecting the accessory hemiazygos vein,it crossed over the aorta and the pedicle of the left lung via the hemiazygos arch,then converged with a communicative branch(vein of Marshall)that emerged from the left brachiocephalic vein to form the persistent left superior vena cava and entered the pericardium.展开更多
文摘During the dissection of a 72-year old male cadaver,the hemiazygos vein(HAV)coursing the left side that drains into the persistent left superior vena cava was observed.The HAV was formed at the junction of the 9th to 11th right posterior intercostal veins,right subcostal vein,5th to 11th left posterior intercostal veins,and left subcostal vein;then ascended posteriorly to the thoracic aorta.After collecting the accessory hemiazygos vein,it crossed over the aorta and the pedicle of the left lung via the hemiazygos arch,then converged with a communicative branch(vein of Marshall)that emerged from the left brachiocephalic vein to form the persistent left superior vena cava and entered the pericardium.
