Linguine sign (breast)

Linguine sign is one of the imaging signs of intracapsular rupture of a breast implant.

After implantation of a silicone or saline breast implant, a fibrous capsule (scar) forms around the implant shell. In an intracapsular rupture, the contents of the implant are contained by the fibrous scar, while the shell appears as a group of wavy lines. This has been termed the "linguine sign" and has been most commonly described with MR imaging, although, as shown in the case 1, it can also occasionally be depicted on CT.