Breast tissue expanders | 合法醫療器材資訊網

SeveralcaseshavebeenreportedwherepatientshaveexperiencedlocalizedheatingordiscomfortorhaveactuallyhadtheirportsdislodgedduringMRI.

Whats the danger with breast tissue expanders in MRI?

Tissue expanders are balloon-like devices temporarily placed in the operative bed after mastectomy during the first stage of breast reconstruction. They typically have silicone outer shells and a superficial valve or port. Saline is injected at regular intervals over several months to stretch the skin and overlying muscles. Once they have attained their desired size, the expanders are removed and replaced with permanent saline or silicone-gel breast prostheses (all of which are MR Safe). Breast tissue expanders in most common use today are manufactured by Mentor (Johnson & Johnson), Allergan, and Sientra.

MAGNA-SITE® port (From Yoon under CC BY)

MAGNA-SITE® injection port in a breast tissueexpander (ar...