Calcified yolk sac
Updates to Article Attributes
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was changed:
A calcified yolk sac has been described as a sign of early 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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-<p>A <strong>calcified yolk sac</strong> has been described as a sign of early 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 echogenicity of the yolk sac with posterior acoustic shadowing and possibly <a title="Comet tail artifact" href="/articles/comet-tail-artefact">comet tail artifact</a>.</li></ul>- +<p>A <strong>calcified yolk sac</strong> has been described as a sign of early 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>
- +</li></ul>
References changed:
- 1. Harris RD, Vincent LM, Askin FB. Yolk sac calcification: a sonographic finding associated with intrauterine embryonic demise in the first trimester. Radiology. 1988;166 (1): 109-10. <a href="http://dx.doi.org/10.1148/radiology.166.1.3275964">doi:10.1148/radiology.166.1.3275964</a> - <a href="http://www.ncbi.nlm.nih.gov/pubmed/3275964">Pubmed citation</a><span class="auto"></span>
Tags changed:
- obstetrics
- fetus
- first trimester
- cases
Systems changed:
- Obstetrics
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