Free silicone breast injections

Changed by Henry Knipe, 10 Nov 2023
Disclosures - updated 16 Jan 2023:
  • Integral Diagnostics, Shareholder (ongoing)
  • Micro-X Ltd, Shareholder (ongoing)

Updates to Article Attributes

Body was changed:

Free silicone breast injections (silicone mastopathy) are an alternative form of breast augmentation to breast implants, although they have serious adverse effects and are banned in many countries. 

Radiographic features

There are similar features to that of free silicone from breast implant rupture, although there will be no implant or fibrous capsule.

Mammography
  • extremely dense lobulated masses +/- rim calcification

  • extremely dense lymph nodes may be present

Ultrasound
  • "snowstorm appearance" of echogenic foci with posterior shadowing obscuring the posterior breast 3

MRI

Signal characteristics of silicone:

  • T1 FS: low signal

  • T2 water suppressed: high signal 

History and etymology

Free silicone injections were the precursor to breast prosthesis implantation and were banned in the United States in the 1990s 1,2. However, they are still performed in developing countries in South America and Asia. 

Differential diagnosis

  • -<p><strong>Free silicone breast injections</strong> (<strong>silicone mastopathy</strong>) are an alternative form of breast augmentation to <a href="/articles/breast-implants">breast implants</a>, although they have serious adverse effects and are banned in many countries. </p><h4>Radiographic features</h4><p>There are similar features to that of free silicone from <a href="/articles/breast-implant-rupture">breast implant rupture</a>, although there will be no implant or fibrous capsule.</p><h5>Mammography</h5><ul>
  • -<li>extremely dense lobulated masses +/- rim calcification</li>
  • -<li>extremely dense lymph nodes may be present</li>
  • -</ul><h5>Ultrasound</h5><ul><li>"snowstorm appearance" of echogenic foci with posterior shadowing obscuring the posterior breast <sup>3</sup>
  • -</li></ul><h5>MRI</h5><p>Signal characteristics of silicone:</p><ul>
  • -<li>
  • -<strong>T1 FS</strong>: low signal</li>
  • -<li>
  • -<strong>T2 water suppressed</strong>: high signal </li>
  • -</ul><h4>History and etymology</h4><p>Free silicone injections were the precursor to breast prosthesis implantation and were banned in the United States in the 1990s <sup>1,2</sup>. However, they are still performed in developing countries in South America and Asia. </p><h4>Differential diagnosis</h4><ul><li>
  • -<a href="/articles/scleroderma">scleroderma</a> <sup>4</sup>
  • -</li></ul>
  • +<p><strong>Free silicone breast injections</strong> (<strong>silicone mastopathy</strong>) are an alternative form of breast augmentation to <a href="/articles/breast-implants">breast implants</a>, although they have serious adverse effects and are banned in many countries. </p><h4>Radiographic features</h4><p>There are similar features to that of free silicone from <a href="/articles/breast-implant-rupture">breast implant rupture</a>, although there will be no implant or fibrous capsule.</p><h5>Mammography</h5><ul>
  • +<li><p>extremely dense lobulated masses +/- rim calcification</p></li>
  • +<li><p>extremely dense lymph nodes may be present</p></li>
  • +</ul><h5>Ultrasound</h5><ul><li><p>"snowstorm appearance" of echogenic foci with posterior shadowing obscuring the posterior breast <sup>3</sup></p></li></ul><h5>MRI</h5><p>Signal characteristics of silicone:</p><ul>
  • +<li><p><strong>T1 FS</strong>: low signal</p></li>
  • +<li><p><strong>T2 water suppressed</strong>: high signal </p></li>
  • +</ul><h4>History and etymology</h4><p>Free silicone injections were the precursor to breast prosthesis implantation and were banned in the United States in the 1990s <sup>1,2</sup>. However, they are still performed in South America and Asia. </p><h4>Differential diagnosis</h4><ul><li><p><a href="/articles/scleroderma">scleroderma</a> <sup>4</sup></p></li></ul>

References changed:

  • 1. Caskey C, Berg W, Hamper U, Sheth S, Chang B, Anderson N. Imaging Spectrum of Extracapsular Silicone: Correlation of US, MR Imaging, Mammographic, and Histopathologic Findings. Radiographics. 1999;19 Spec No(suppl_1):S39-51; quiz S261-2. <a href="https://doi.org/10.1148/radiographics.19.suppl_1.g99oc11s39">doi:10.1148/radiographics.19.suppl_1.g99oc11s39</a> - <a href="https://www.ncbi.nlm.nih.gov/pubmed/10517442">Pubmed</a>
  • 2. Venkataraman S, Hines N, Slanetz P. Challenges in Mammography: Part 2, Multimodality Review of Breast Augmentation--Imaging Findings and Complications. AJR Am J Roentgenol. 2011;197(6):W1031-45. <a href="https://doi.org/10.2214/AJR.11.7216">doi:10.2214/AJR.11.7216</a> - <a href="https://www.ncbi.nlm.nih.gov/pubmed/22109317">Pubmed</a>
  • 3. Leibman A & Misra M. Spectrum of Imaging Findings in the Silicone-Injected Breast. Plast Reconstr Surg. 2011;128(1):28e-9e. <a href="https://doi.org/10.1097/PRS.0b013e31821744d5">doi:10.1097/PRS.0b013e31821744d5</a> - <a href="https://www.ncbi.nlm.nih.gov/pubmed/21701304">Pubmed</a>
  • 4. Ralph Weissleder. Primer of Diagnostic Imaging. (2011) ISBN: 9780323065382 - <a href="http://books.google.com/books?vid=ISBN9780323065382">Google Books</a>
  • 1. Caskey CI, Berg WA, Hamper UM et-al. Imaging spectrum of extracapsular silicone: correlation of US, MR imaging, mammographic, and histopathologic findings. Radiographics. 1999;19 Spec No (suppl_1): S39-51. <a href="http://dx.doi.org/10.1148/radiographics.19.suppl_1.g99oc11s39">doi:10.1148/radiographics.19.suppl_1.g99oc11s39</a> - <a href="http://www.ncbi.nlm.nih.gov/pubmed/10517442">Pubmed citation</a><span class="auto"></span>
  • 2. Venkataraman S, Hines N, Slanetz PJ. Challenges in mammography: part 2, multimodality review of breast augmentation-imaging findings and complications. AJR Am J Roentgenol. 2011;197 (6): W1031-45. <a href="http://dx.doi.org/10.2214/AJR.11.7216">doi:10.2214/AJR.11.7216</a> - <a href="http://www.ncbi.nlm.nih.gov/pubmed/22109317">Pubmed citation</a><span class="auto"></span>
  • 3. Leibman AJ, Misra M. Spectrum of imaging findings in the silicone-injected breast. Plast. Reconstr. Surg. 2011;128 (1): 28e-9e. <a href="http://dx.doi.org/10.1097/PRS.0b013e31821744d5">doi:10.1097/PRS.0b013e31821744d5</a> - <a href="http://www.ncbi.nlm.nih.gov/pubmed/21701304">Pubmed citation</a><span class="auto"></span>
  • 4. Weissleder R, Wittenberg J, Harisinghani MMGH et-al. Primer of Diagnostic Imaging. Mosby. (2011) ISBN:0323065384. <a href="http://books.google.com/books?vid=ISBN0323065384">Read it at Google Books</a> - <a href="http://www.amazon.com/gp/product/0323065384">Find it at Amazon</a><span class="ref_v3"></span>
Images Changes:

Image 6 Mammography (LCC pushback) ( destroy )

Ddx was removed.
Caption was removed:
Case 5
Position was removed.

Image 6 Mammography (RCC) ( create )

Caption was added:
Case 5: with breast implants
Position was set to 6.

Image 7 Mammography (RCC) ( create )

Caption was added:
Case 6
Position was set to 7.

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