A 50-year-old man was taken by ambulance due to hematemesis (vomiting of blood). Endoscopic examination reveals bleeding esophageal varices resulting from portal obstruction. These varices represent anastomoses between branches of which of the following?
inferior vena cava with a patent ductus venosus
left gastric, azygos, and hemiazygos veins
right gastric vein and the inferior vena cava
superior, middle, and inferior rectal veins
veins running on the ligamentum teres and the epigastric veins
15 апр 2024
