👉 Villiplacentalia is a type of placenta, which is a special type of umbilical cord that is made up of a layer of tissue called villi and a layer of tissue called placentae. Villi are thin, muscular tubes that connect the placenta to the uterine wall, while placentae are the cells lining the uterus. Villiplacentalia is considered abnormal because it may lead to complications such as infection, failure of blood flow, or