Benign vs malignant features of gallbladder polyps
Updates to Article Attributes
Title
was changed:
Benign vs. malignant features of gallbladder polyps
Body
was changed:
In most instances predicting histology of a gallbladder polyp based purely on imaging is notpossible. A number of features are however helpful in helping to decide management of a polypoid lesion of the gallbladder.
Benign features
- size
- polyps that are less than 5 mm in size are almost always cholesterol polyps 1
- 5
- 10-10 mm polyps may warrant follow-up to ensure no interval growth 1
- morphology
- pedunculated
- number
- >50% of cholesterol polyps are multiple 3
- growth
- stable size
- CT
/ MRI/MRI enhancement- similar to the rest of the gallbladder wall
- US features
- small echogenic focus
/or cluster of foci - comet tail artefact (cholesterol polyp)
- small echogenic focus
Malignant features
- size
- greater than 10 mm: 37-88% are malignant 4
- morphology
- sessile 1-2
- number
- solitary lesion 2
- growth
- interval increase in size 1-2
- CT
/ MRI/MRI enhancement- greater than the normal gallbladder wall 1-2
-<p>In most instances predicting histology of a <a href="/articles/gallbladder-polyp" title="Gallbladder polyp">gallbladder polyp</a> based purely on imaging is not-possible. A number of features are however helpful in helping to decide management of a polypoid lesion of the gallbladder. </p><h4>Benign features</h4><ul><li>size<ul><li>polyps that are less than 5 mm in size are almost always cholesterol polyps <sup>1</sup></li><li>5 - 10 mm polyps may warrant follow-up to ensure no interval growth <sup>1</sup></li></ul></li><li>morphology<ul><li>pedunculated</li></ul></li><li>number<ul><li>>50% of cholesterol polyps are multiple <sup>3</sup></li></ul></li><li>growth<ul><li>stable size</li></ul></li><li>CT / MRI enhancement<ul><li>similar to the rest of the gallbladder wall</li></ul></li><li>US features<ul><li>small echogenic focus / cluster of foci</li><li><a href="/articles/comet-tail-artefact" title="comet tail artefact">comet tail artefact</a> (cholesterol polyp)</li></ul></li></ul><h4>Malignant features</h4><ul><li>size <ul><li>greater than 10 mm : 37-88% are malignant <sup>4</sup> </li></ul></li><li>morphology<ul><li>sessile <sup>1-2</sup></li></ul></li><li>number<ul><li>solitary lesion <sup>2</sup></li></ul></li><li>growth<ul><li>interval increase in size <sup>1-2</sup></li></ul></li><li>CT / MRI enhancement<ul><li>greater than the normal gallbladder wall <sup>1-2</sup></li></ul></li></ul>- +<p>In most instances predicting histology of a <a href="/articles/gallbladder-polyp">gallbladder polyp</a> based purely on imaging is not possible. A number of features are however helpful in helping to decide management of a polypoid lesion of the gallbladder.</p><h4>Benign features</h4><ul>
- +<li>size<ul>
- +<li>polyps that are less than 5 mm in size are almost always cholesterol polyps <sup>1</sup>
- +</li>
- +<li>5-10 mm polyps may warrant follow-up to ensure no interval growth <sup>1</sup>
- +</li>
- +</ul>
- +</li>
- +<li>morphology<ul><li>pedunculated</li></ul>
- +</li>
- +<li>number<ul><li>>50% of cholesterol polyps are multiple <sup>3</sup>
- +</li></ul>
- +</li>
- +<li>growth<ul><li>stable size</li></ul>
- +</li>
- +<li>CT/MRI enhancement<ul><li>similar to the rest of the gallbladder wall</li></ul>
- +</li>
- +<li>US features<ul>
- +<li>small echogenic focus or cluster of foci</li>
- +<li>
- +<a href="/articles/comet-tail-artefact">comet tail artefact</a> (cholesterol polyp)</li>
- +</ul>
- +</li>
- +</ul><h4>Malignant features</h4><ul>
- +<li>size<ul><li>greater than 10 mm: 37-88% are malignant <sup>4</sup>
- +</li></ul>
- +</li>
- +<li>morphology<ul><li>sessile <sup>1-2</sup>
- +</li></ul>
- +</li>
- +<li>number<ul><li>solitary lesion <sup>2</sup>
- +</li></ul>
- +</li>
- +<li>growth<ul><li>interval increase in size <sup>1-2</sup>
- +</li></ul>
- +</li>
- +<li>CT/MRI enhancement<ul><li>greater than the normal gallbladder wall <sup>1-2</sup>
- +</li></ul>
- +</li>
- +</ul>
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