Case of variable drainage of the superior branch of the left pulmonary vein with patent foramen ovale

摘要

During routine dissection course we have found abnormal drainage of the superior branch of pulmonary vein. The vein collecting the blood from the superior lobe of the left lung was draining into the left brachiocephalic vein. After that the venous drainage was following its usual way. The inferior lobe of the left lung was drained normally into the left atrium. The two pulmonary veins of the right lung had no variations. During classical dissection of the heart we have found foramen ovale enormous in size. Variation of that type has significant value in performing manipulations and operations of the heart.