Figure 1. Anatomy of silicone implant rupture Figure 1. Anatomy of silicone implant rupture. A, The elastomer shell (purple outline) of an unruptured retroglandular single-lumen implant abuts and is entirely contained within the fibrous capsule (white outline). B, When intracapsular rupture occurs, silicone intercalates between the intact fibrous capsule and the elastomer shell (*). C, Disruption of the fibrous capsule allows silicone gel within the intracapsular space to escape into adjacent breast parenchyma (arrow) and is termed extracapsular rupture.