All of the following are true about venous drainage of esophagus except:
Thoracic esophagus drains into the azygos vein
Esophageal veins drain into a submucosal plexus
The cervical esophagus drains directly into the right brachiocephalic vein
Lower esophageal veins anastomose with the left gastric vein
Ans: C. The cervical esophagus drains directly into the right brachiocephalic vein(Ref: Gray's 411e p1111, 40Ie p950).Cervical pa of esophagus is drained into inferior thyroid vein, not the right brachiocephalic vein.Venous drainage of esophagus:Cervical pa is drained by inferior thyroid vein.Thoracic pa is drained by azygous and hemiazygous veins.Abdominal pa is drained by two venous channels, hemiazygous vein and left gastric vein.