One such device is the Magna-Site tissue expander port (McGhan Medical Corporation, Santa Barbara, CA), which incorporates a rare-earth magnet housed in a titanium shell (arrows)in the injection port. The magnet is detected postoperatively with the Magna-Finder device.
- Elliott MP, Dubrul W. Magna-Site tissue expander: an innovation for injection site location. Plast Reconstr Surg. 1988 Apr;81(4):605-7.
- Liang MD, Narayanan K, Kanal E. Magnetic ports in tissue expanders--a caution for MRI. Magn Reson Imaging. 1989 Sep-Oct;7(5):541-2.