SUCCENTURIATE PLACENTA

BILOBATE PLACENTAE

 

 

SUCCENTURIATE PLACENTA

 

 

Succenturiate lobes of the placenta result from focal areas of non-involution of the chorionic laeve.

One or more accessory lobes are developed in the membranes at a distance from the periphery of the main placental mass.

Vascular connections of fetal origin usually connect the main placental mass to the succenturiate lobe. These accessory lobes may be single or multiple of varying size.

 

Case 1

Case 2

 

COMPLICATIONS

 

BILOBATE PLACENTAE

 

 

 

 

Bilobed placenta

Succenturiate placenta

Placental lobes

Equal size

Different size

Cord attachment

Central

Eccentric velamentous

Placenta lobes attached by:

Placental / chorionic tissue

Membranes

Complications

Occasionally velamentous cord insertion

Retained products

Velamentous attachment

Vasa previa

Hemorrhage from vessels attaching main placental mass to succenturiate lobe

 

 

 

 

REFERENCES

  1. Jeanty P, Kirkpatrick C, Verhoogen C et.al. The succenturiate placenta. J Ultrasound Med 1983;2:9-12.
  2. Spirt BA, Kagan EH, Gordon LP et.al. Antepartum diagnosis of a succenturiate placenta: sonographic and pathologic correlation. J Clin Ultrasound 1981;9:139-140.