Tip of the iceberg sign (ovarian dermoid cyst)
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Tip of the iceberg sign (ovarian dermoid cyst)
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The tip of the iceberg sign refers to one of the characteristic appearances of an ovarian dermoid cyst. The highly echogenic cyst contents of sebum and hair cause posterior attenuation of sound, so that only the superficial part of the cyst is seen.
The intense acoustic shadowing in an ovarian dermoid may also be caused by calcifications (such as teeth), or or by fat in a Rokitansky Rokitansky nodule - if present.
-<p>The <strong>tip of the iceberg sign</strong> refers to one of the characteristic appearances of an <a title="Ovarian dermoid cyst" href="/articles/ovarian-dermoid-cyst">ovarian dermoid cyst</a>. The highly echogenic cyst contents of sebum and hair cause posterior attenuation of sound, so that only the superficial part of the cyst is seen. </p>-<p>The intense acoustic shadowing in an ovarian dermoid may also be caused by calcifications (such as teeth), or fat in a Rokitansky nodule - if present. </p>- +<p>The <strong>tip of the iceberg sign</strong> refers to one of the characteristic appearances of an <a href="/articles/mature-cystic-ovarian-teratoma">ovarian dermoid cyst</a>. The highly echogenic cyst contents of sebum and hair cause posterior attenuation of sound so that only the superficial part of the cyst is seen. </p><p>The intense acoustic shadowing in an ovarian dermoid may also be caused by calcifications (such as teeth) or by fat in a Rokitansky nodule if present.</p>
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