INTRACAPSULAR SILICONE IMPLANT RUPTURE

• Shell of the implant ruptures but fibrous capsule intact
• Mammo: typically normal appearance
• Breast MRI most sensitive for detection of implant integrity; H2O suppressed STIR
  • “Keyhole/teardrop” sign – uncollapsed
  • “Subcapsular line” sign – minimally collapsed
  • “Linguine” sign – fully collapsed
• Median time to rupture ~10 years, ↑↑↑ with time

Related Radiology Article: Seiler SJ, Sharma PB, Hayes JC, Ganti R, Mootz AR, Eads ED, Teotia SS, Evans WP. Multimodality imaging-based evaluation of single-lumen silicone breast implants for rupture. Radiographics. 2017 Mar;37(2):366-82.