Revision 6 for 'Calcified yolk sac'

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Calcified yolk sac

A calcified yolk sac has been described as a sign of longstanding intrauterine demise. The cause of yolk sac calcification in failed pregnancies is uncertain, but is likely related to dystrophic calcification.

Radiographic features

Ultrasound
  • abnormal increased echogenicity of the yolk sac with posterior acoustic shadowing and possibly comet tail artifact

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