There are four kinds of cord insertions: marginal, velamentous, marginal, eccentric, and central. Central is normal. Eccentric, which is the lateral insertion of the umbilical cord >2 cm from the placental margin, is also not a grave concern.

What is meant by eccentric insertion of umbilical cord?

There can be several variations with cord insertion into the placenta: central insertion (~90%): normal situation. eccentric cord insertion: lateral insertion of the umbilical cord >2 cm from the placental margin. term sometimes used synonymously with marginal cord insertion.

What is a normal placental cord insertion?

Normally the umbilical cord is supposed to insert and attach to the center of the placenta (central cord insertion). A marginal umbilical cord insertion occurs when the cord attaches on the side of the placenta instead of in the middle at the central placental mass.