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Placental problems: cysts, hematoma (bleeding),partial placental separation, large/thick placenta


Various problems can occur in the placenta:

  • Cysts

  • Hematoma

  • Partial separation

  • Thick placenta and/or placental tumors

Clinical signs

Placental cysts

These are cysts in the placenta that contain fluid. This can be old blood or a different fluid.


This is a cyst in the placenta of variable size formed as a result of bleeding into the placenta.

Partial separation

This happens when a part of the placenta separates from the wall of the uterus.

Thick placenta and/or placental tumors

These are various conditions that are associated with an enlarged placenta or placental region.

Inheritance pattern

These problems in the placenta are usually not hereditary


Not known.

Associated features that can be demonstrated in tests performed during pregnancy

It is important to refer the couple for genetic counseling, to which they should bring all data, including the results of other tests performed during the pregnancy such as alpha-fetoprotein, nuchal translucency, etc.

What is the risk of recurrence in a subsequent pregnancy?

Not increased

Molecular genetic information

The gene for the disease

Not known


Not known

Genetic testing

Diagnostic testing

Not available

Carrier testing

Not available

Fetal testing

Ultrasound examination only
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