Calcified yolk sac

Changed by Alexandra Stanislavsky, 15 Feb 2016

Updates to Article Attributes

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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
  • -<p>A <strong>calcified yolk sac</strong> 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.</p><h4>Radiographic features</h4><h5>Ultrasound</h5><ul><li>abnormal increased echogenicity of the yolk sac with posterior acoustic shadowing and possibly <a href="/articles/comet-tail-artefact">comet tail artifact</a>
  • +<p>A <strong>calcified yolk sac</strong> has been described as a sign of intrauterine demise. The cause of yolk sac calcification in failed pregnancies is uncertain, but is likely related to dystrophic calcification.</p><h4>Radiographic features</h4><h5>Ultrasound</h5><ul><li>abnormal increased echogenicity of the yolk sac with posterior acoustic shadowing and possibly <a href="/articles/comet-tail-artefact">comet tail artifact</a>

References changed:

  • 2. Sinan Tan. Sonographic Evaluation of the Yolk Sac. JUM. 2012;31 (1): 87-95. <a href="http://www.jultrasoundmed.org/content/31/1/87.full">JUM (full text)</a><span class="auto"></span>

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