ARRS 2022 Abstracts

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E1599. Silicone: Its Versatility in Medicine
Authors
  1. Kalyani Ballur; Medical College of Georgia at Augusta University
  2. Kate Elmore; Augusta University Medical Center
  3. Jayanth Keshavamurthy; Augusta University
Background
Silicone is biocompatible due to its resiliency under thermal and oxidative stresses, chemical inertness, and hypoallergenicity. Silicone is used in a variety of medical procedures and equipment, including joints, catheters, breast implants, heart valves, and ophthalmological implants. One example of silicone application is for retinal detachment, which occurs in 5–7% of the population. Scleral buckling made of silicone solid or silicone sponges creates an indent under the retinal break allowing for reattachment of the retinal layers. Complications of the scleral buckling elements are infection, intrusion, extrusion, glaucoma, macular edema, and choroidal detachment. Another example of silicone use is for cosmetic implants. Over 17 million cosmetic procedures were performed in the United States in 2016 by medical professionals. Unlike silicone implants, silicone injections for cosmetic purposes are not approved by the FDA due to their risk of complications, such as granulomas.

Educational Goals / Teaching Points
By the end of this exhibit, the participant should be able to understand the uses of silicone medically and outline complications of silicone in medical applications. Throughout the exhibit, we will discuss the role of imaging in diagnosing and treating complications of silicone and in evaluating proper placement of silicone.

Key Anatomic/Physiologic Issues and Imaging Findings/Techniques
In this exhibit, we will focus on CT and MRI findings of cases that apply silicone, such as scleral buckling and silicone oil for retinal detachment and breast implants. We will review how silicone appears on different imaging modalities as well as the complications of silicone and how to recognize these on imaging. We will address other diagnoses, such as breast lesions, that silicone may mimic in appearance or obscure on imaging. We will also highlight the importance for radiologists to understand the variety of procedures that use silicone to better interpret imaging findings.

Conclusion
Radiologists must be well versed in the ever-growing number of applications involving silicone material and in its imaging appearance across modalities and utilizations to produce reports that add value to postoperative imaging. Given the increasing use of silicone for various procedures, there is a need for a further understanding the of the uses, complications, and imaging features of silicone to allow for efficient management of patients.