Ultrasound appearances of hepatic metastases
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Ultrasound appearance of liver metastases can have a bewildering bewildering variation.
Patterns do exist between ultrasound appearance of the liver metastases and the likely primary, which is sometimes helpful in directing search for an unknown primary, as well as helping distinguish between benign lesions and metastatic disease from a particular primary:
- hypoechoic: most common
~ 65~65% - hyperechoic
- peripheral halo: a hypoechoic halo is a concerning feature
- common in many
- lung cancer
- calcified
- mucinous adenocarcinoma
- gastrointestinal
- ovarian mucinous adenocarcinoma
- mucinous adenocarcinoma
- cystic
- poorly defined (infiltrative)
Contrast-enhanced ultrasound
May be useful to increase conspicuity of lesions and/or guide biopsy
-
arterial phase: variable depending on primary
- hypovascular: gastrointestinal, ovarian, pancreatic adenocarcinoma
- hypervascular: neuroendocrine, melanoma, renal
-
portal venous phase
- "wash out" (decreased echogenicity relative to background liver); may be the most useful phase for detection
-<p><strong>Ultrasound appearance of liver metastases</strong> can have a bewildering variation.</p><p>Patterns do exist between ultrasound appearance of the <a title="Liver metastases" href="/articles/hepatic-metastases-1">liver metastases</a> and the likely primary, which is sometimes helpful in directing search for unknown primary, as well as helping distinguish between benign lesions and metastatic disease from a particular primary:</p><ul>-<li>hypoechoic: most common ~ 65%<ul>- +<p><strong>Ultrasound appearance of liver metastases</strong> can have bewildering variation.</p><p>Patterns do exist between ultrasound appearance of the <a href="/articles/hepatic-metastases-1">liver metastases</a> and the likely primary, which is sometimes helpful in directing search for an unknown primary, as well as helping distinguish between benign lesions and metastatic disease from a particular primary:</p><ul>
- +<li>hypoechoic: most common ~65%<ul>
- +</ul><h5>Contrast-enhanced ultrasound</h5><p>May be useful to increase conspicuity of lesions and/or guide biopsy</p><ul>
- +<li>arterial phase: variable depending on primary<ul>
- +<li>hypovascular: gastrointestinal, ovarian, pancreatic adenocarcinoma</li>
- +<li>hypervascular: neuroendocrine, melanoma, renal</li>
- +</ul>
- +</li>
- +<li>portal venous phase<ul><li>"wash out" (decreased echogenicity relative to background liver); may be the most useful phase for detection</li></ul>
- +</li>
References changed:
- 1. Riccardo Lencioni, Dania Cioni, Carlo Bartolozzi. Focal Liver Lesions. (2004) ISBN: 9783540644644 - <a href="http://books.google.com/books?vid=ISBN9783540644644">Google Books</a>
- 4. Malhi H, Grant E, Duddalwar V. Contrast-Enhanced Ultrasound of the Liver and Kidney. Radiol Clin North Am. 2014;52(6):1177-90. <a href="https://doi.org/10.1016/j.rcl.2014.07.005">doi:10.1016/j.rcl.2014.07.005</a> - <a href="https://www.ncbi.nlm.nih.gov/pubmed/25444099">Pubmed</a>
- 1. Lencioni Riccardo, Dania Cioni and Carlo Bartolozzi. Focal liver lesions. Springer, 2005. <a href="http://www.worldcat.org/wcpa/isbn/3540644644, 9783540644644" target="_blank">ISBN: 3540644644, 9783540644644</a>.
Tags changed:
- contrast-enhanced ultrasound
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