Mediastinal lipoma
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- updated 4 Feb 2023:
Nothing to disclose
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A mediastinal lipoma is a benign fat-containing mediastinal lesion.
Pathology
Similar to lipomas elsewhere and except in rare situations comprise of mature adipocytes. They can be variable in size. They are usually seen as an encapsulated mass with homogeneous fat attenuation. These lesions occur most commonly in the anterior mediastinum 2.
Differential diagnosis
On imaging possible differential considerations include
- thymolipoma- centred on the thymus
- mediastinal liposarcoma - can appear more infiltrative/invasive and less homogenous
- mediastinal lipomatosis - fatty tissue but usually diffuse and not encapsulated
- mediastinal germ cell tumour/ mediastinal teratoma - usually contains other elements in addition to fat
See also
-<p>A <strong>mediastinal lipoma</strong> is a benign <a href="/articles/fatty-mediastinal-masses-differential">fat-containing mediastinal lesion</a>.</p><h4>Pathology</h4><p>Similar to <a href="/articles/lipomas">lipomas</a> elsewhere and except in rare situations comprise of mature adipocytes. They can be variable in size. They are usually seen as an encapsulated mass with homogeneous fat attenuation. These lesions occur most commonly in the anterior mediastinum <sup>2</sup>. </p><h4>Differential diagnosis</h4><p>On imaging possible differential considerations include</p><ul>- +<p>A <strong>mediastinal lipoma</strong> is a benign <a href="/articles/fatty-mediastinal-masses-differential">fat-containing mediastinal lesion</a>.</p><h4>Pathology</h4><p>Similar to <a href="/articles/lipomas">lipomas</a> elsewhere and except in rare situations comprise of mature adipocytes. They can be variable in size. They are usually seen as an encapsulated mass with homogeneous fat attenuation. These lesions occur most commonly in the anterior mediastinum <sup>2</sup>. </p><h4>Differential diagnosis</h4><p>On imaging possible differential considerations include</p><ul>
-<a href="/articles/thymolipoma">thymolipoma</a> - centred on the thymus</li>- +<a href="/articles/thymolipoma">thymolipoma</a> - centred on the thymus</li>
-<a href="/articles/mediastinal-germ-cell-tumour">mediastinal germ cell tumour</a> / <a href="/articles/mediastinal-teratoma">mediastinal teratoma</a> - usually contains other elements in addition to fat</li>- +<a href="/articles/mediastinal-germ-cell-tumour">mediastinal germ cell tumour</a> / <a href="/articles/mediastinal-teratoma">mediastinal teratoma</a> - usually contains other elements in addition to fat</li>
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Image 4 CT (non-contrast) ( create )
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Case 3 Mediastinal lipoma
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