Poor prognosticators: calcified yolk sac and expanded amnion sign (IMAGE)

Radiological Society of North America

Poor prognosticators: calcified yolk sac and expanded amnion sign

Caption

Poor prognosticators: calcified yolk sac and expanded amnion sign. Transvaginal sagittal grayscale ultrasound image in a 27-year-old pregnant patient shows an 8-mm embryo (calipers) without cardiac activity (M-mode not shown) sufficient for the interpretation of diagnostic of early pregnancy loss (EPL). Additional poor prognosticators include a calcified yolk sac (arrow) and an enlarged amniotic cavity (arrowhead) relative to the crown-rump length (CRL) of the embryo, called the expanded amnion sign. These additional observations, on their own, are only concerning for EPL. GA = gestational age.

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Radiological Society of North America (RSNA)

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