Linguine sign (breast)

Linguine sign, also known as the wavy line sign, is one of the imaging signs of intracapsular rupture of a breast implant 4.

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 it can also occasionally be depicted on CT.

Seepage of silicone into intracapsular space causes partial or complete implant collapse and appears as multiple low-signal-intensity curvilinear lines on T2 weighted MR images 4.

  • linguine sign demonstrates a significantly advanced form of intracapsular implant rupture
Breast imaging and pathology
Inspired signs

Article information

rID: 1586
System: Breast
Section: Signs
Synonyms or Alternate Spellings:
  • Wavy line sign
  • Linguini sign

ADVERTISEMENT: Supporters see fewers/no ads

Cases and figures

  • Case 1: CT of intracapsular breast implant rupture
    Drag here to reorder.
  • Case 2: on MRI
    Drag here to reorder.
  • Updating… Please wait.

     Unable to process the form. Check for errors and try again.

     Thank you for updating your details.