Keyhole sign (intracapsular breast implant rupture)

The keyhole or noose sign indicates an uncollapsed intracapsular breast implant rupture seen as the focal invagination of the implant shell caused by a small concealed leak of silicone outside shell where the two membranes do not contact each other. It is best appreciated by MRI.

Differential diagnosis

• teardrop sign

Siehe auch:

• Implantatruptur Mamma
• Schlüssellochzeichen