Introducing the Beacon™ Tissue Marker, the newest addition to the Cassi™ product portfolio

The Cassi Beacon breast tissue marker is designed to provide accurate placement and permanent visibility with ultrasound. The 5mm by 1.5mm cylindrical Cassi Beacon’s open architecture allows for tissue ingrowth to minimize marker migration.The marker provides excellent and permanent visualization under the major imaging modalities:

  • Ultrasound
  • Mammography (X-Ray)
  • MRI

The Cassi Beacon is the first breast marker to be made with Polyetherketoneketone (PEKK) Polymers. This proven material has been used routinely in surgical implants and dental devices for years and is biocompatible for permanent placement within breast tissue.

beacon marker brochure
Beacon Marker


Beacon Beacon

Beacon implanted in patient September 2013

Beacon follow up with patient six months after implantation in March 2014

ultrasound ultrasound



mammography mri



To learn more about the Cassi Beacon tissue marker or to set up a demonstration with the Cassi, please call (888) 582-6211 or email us at


Click Here to see information on the CASSI Rotational Core Ultrasound Breast Biopsy.