Pancreatic lipoma
Updates to Synonym Attributes
Updates to Synonym Attributes
Updates to Synonym Attributes
Updates to Article Attributes
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was changed:
Pancreatic lipomas are uncommon mesenchymal tumors of the pancreas.
Clinical presentation
Rarely symptomatic, they are more often detected incidentally on cross-sectional imaging for another purpose. If they do cause symptoms, it will typically be those related to regional mass effect from the mass.
Pathology
Mature fat cells with thin internal fibrous septa. It differs from pancreatic lipomatosis in that it has well-defined margins from a thin collagen capsule.
Radiographic features
CT
- well-circumscribed, lobulated lesion in the pancreas that measures fat attenuation (HU <-10)
- does not enhance
MRI
- well-circumscribed, lobulated lesion in the pancreas that is T1 and T2 hyperintense
- saturates on a fat-saturated sequence
- may not be hypointense on an out-of-phase sequence (edge may show "india-ink" artifact
US
- difficult to diagnose: may be hyperechoic or hypoechoic
Treatment and prognosis
They are not locally aggressive or metastatic tumors, and only rarely need resected.
Differential diagnosis
- pancreatic mature cystic teratoma (dermoid): even more rare, may have associated calcifications
- liposarcoma: can be considered if there are atypical findings such as an infiltrative lesion, a large lesion, or solid enhancing elements
-<p><strong>Pancreatic lipomas </strong>are uncommon <a title="Pancreatic mesenchymal tumor" href="/articles/pancreatic-mesenchymal-neoplasms">mesenchymal tumors of the pancreas</a>.</p><h4>Clinical presentation</h4><p>Rarely symptomatic, they are more often detected incidentally on cross-sectional imaging for another purpose. If they do cause symptoms, it will typically be those related to regional mass effect from the mass.</p><h4>Pathology</h4><p>Mature fat cells with thin internal fibrous septa. It differs from <a title="Pancreatic lipomatosis" href="/articles/pancreatic-lipomatosis">pancreatic lipomatosis</a> in that it has well-defined margins from a thin collagen capsule.</p><h4>Radiographic features</h4><h5>CT</h5><ul>- +<p><strong>Pancreatic lipomas </strong>are uncommon <a href="/articles/pancreatic-mesenchymal-neoplasms">mesenchymal tumors of the pancreas</a>.</p><h4>Clinical presentation</h4><p>Rarely symptomatic, they are more often detected incidentally on cross-sectional imaging for another purpose. If they do cause symptoms, it will typically be those related to regional mass effect from the mass.</p><h4>Pathology</h4><p>Mature fat cells with thin internal fibrous septa. It differs from <a href="/articles/pancreatic-lipomatosis">pancreatic lipomatosis</a> in that it has well-defined margins from a thin collagen capsule.</p><h4>Radiographic features</h4><h5>CT</h5><ul>
-<a title="pancreatic mature cystic teratoma" href="/articles/pancreatic-mature-cystic-teratoma">pancreatic mature cystic teratoma</a> (dermoid): even more rare, may have associated calcifications</li>-<li>liposarcoma: can be considered if there are atypical findings such as an infiltrative lesion, a large lesion, or solid enhancing elements</li>- +<a href="/articles/pancreatic-mature-cystic-teratoma">pancreatic mature cystic teratoma</a> (dermoid): even more rare, may have associated calcifications</li>
- +<li>
- +<a title="Liposarcoma" href="/articles/liposarcoma">liposarcoma</a>: can be considered if there are atypical findings such as an infiltrative lesion, a large lesion, or solid enhancing elements</li>
References changed:
- 1. Manning M, Srivastava A, Paal E, Gould C, Mortele K. Nonepithelial Neoplasms of the Pancreas: Radiologic-Pathologic Correlation, Part 1--Benign Tumors: From the Radiologic Pathology Archives. Radiographics. 2016;36(1):123-41. <a href="https://doi.org/10.1148/rg.2016150212">doi:10.1148/rg.2016150212</a> - <a href="https://www.ncbi.nlm.nih.gov/pubmed/26761535">Pubmed</a>
- 2. Lee S, Thng C, Chow P. Lipoma of the Pancreas, a Case Report and a Review of the Literature. World J Radiol. 2011;3(10):246-8. <a href="https://doi.org/10.4329/wjr.v3.i10.246">doi:10.4329/wjr.v3.i10.246</a> - <a href="https://www.ncbi.nlm.nih.gov/pubmed/22229078">Pubmed</a>
Tags changed:
- pancreas
Systems changed:
- Gastrointestinal
Images Changes:
Image 1 CT (C+ portal venous phase) ( create )
Image 2 CT (non-contrast) ( create )
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