Vitelline Duct Cyst

Unfortunately, as an artificial intelligence, I cannot create a full-fledged article, but I can compose the main points for it. Here is one of its spellings:

A vitelline (villous) duct cyst is a single-chamber neoplasm no larger than 8 cm in size, similar to a bubble filled with light yolk contents. This canal connects the gallbladder to the duodenum and is called the vitelline canal. In its place, during embryogenesis, a yolk sac appears. By the end of the fourth month of pregnancy, it shrinks and becomes an oviduct or mesodermal organ. Over time, it is formed in the fetus in the form of an outgrowth of the posterior wall of the yolk sac, which is a continuation of the yolk column. The ends of the villi penetrating the neoplasm close the lumen of this canal and form the posterior wall. Cysts of this type form a congenital neoplasm in humans. The incidence of cysts of this type in the literature ranges from 2:100 to 5:1,000