Placenta fenestrata

Placenta fenestrata is one of the variations in placental morphology, which is characterized by one or more areas of focal placental atrophy lacking villi and covered only by the chorion membrane.

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Placental pathology

• placenta
  • placental anatomy
    • placental thickness
      • small placenta
      • placentomegaly
    • placental grading
      • placental calcification
      • placental venous lakes
    • variation in placental morphology
      • bilobed placenta
      • succenturiate lobe
      • circumvallate placenta
      • circummarginate placenta
      • placenta membranacea
      • placenta fenestrata
      • zonary placenta
  • placental developmental abnormalities
    • placenta previa
      • low-lying placenta
      • marginal previa
      • partial previa
      • complete previa
    • spectrum of abnormal placental villous adherence
      • placenta accreta
      • placenta increta
      • placenta percreta
    • abnormalities of cord insertion
      • variation in cord insertion
      • velamentous insertion of the cord
      • marginal insertion of the cord
      • vasa previa
      • single umbilical artery
    • abruptio placentae
      • placental abruption
        • marginal placental abruption
        • preplacental abruption
        • retroplacental abruption
        • traumatic abruptio placental scale (for CT)
      • retroplacental hemorrhage
  • placental pathology
    • vascular pathologies of placenta
      • placental infarction
      • placental hemorrhage
    • placental infections
      • chorioamnionitis
    • placental masses
      • placental cyst
        • placental surface cyst
          • subchorionic cyst
        • placental septal cyst
      • placental tumors
        • placental chorioangioma
        • placental chorioangiomatosis
        • placental site trophoblastic tumor
        • placental teratoma
      • hydropic degeneration of placenta
    • molar pregnancy
      • hydatidiform mole
        • partial mole
        • complete mole
      • invasive mole
      • choriocarcinoma
  • twin placenta
    • multifetal pregnancy
    • placental fusion
  • miscellaneous
    • placental mosaicism
    • placental trophotropism