Which sign is described as an ultrasound finding for implant rupture?

• A. Step ladder sign - US
• B. Linguini sign - MRI
• C. Intra-capsular implant rupture
• D. Intracapsular implant rupture

Answer: (A)

Recognizing ultrasound signs of implant rupture. The step ladder sign on ultrasound is produced when the silicone implant shell collapses inside the intact fibrous capsule, creating multiple parallel echogenic lines that resemble steps. This pattern is characteristic of intra-capsular rupture and is best visualized with ultrasound, making it the most specific ultrasound finding for rupture.

The linguine sign, by contrast, is described on MRI and shows curly, elongated strands representing the collapsed shell within silicone, giving a pasta-like appearance. The other options refer to rupture locations rather than imaging signs, so they don’t describe a sonographic finding.