IS Case 40: Calcified Breast Implants
Imaging Sciences URMC 2008
Publication Date: 2009-05-19
Patient is a 74-year-old woman who presented with shortness of breath.
The body naturally forms a reactive fibrous capsule around a breast implant. Calcifications can form in this fibrous capsule. The calcifications are in the form of hydroxyapatite crystals within the fibrous capsule or on the surface of the capsule. They appear as plaque-like deposits near the surface of the implant. Normal implants appear semi-ovoid on lateral views. They become rounder and harder with capsule formation.
Timing and frequency of implant calcification vary with year of manufacturing. There have been multiple generations of silicone implants. It is expected that all first generation silicone gel implants which have Dacron-backing calcify. Second generation implant calcification is not usually seen until after a little more than a decade. Third, fourth, and fifth generation implants are now available, however data on their calcification rates is still sparse. Calcifications can also form around saline implants, though it has not been studied as extensively as for silicone implants.
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