Implantable devices and methods of use are disclosed for marking the
location of a biopsy or surgery for the purpose of identification. The
methods include providing a biodegradable radiodense implant and taking a
tissue sample from a biopsy site within a breast of a patient. The
biodegradable implant is then positioned at the biopsy site. The tissue
sample is tested and the biopsy site is then relocated. In one
embodiment, the entire implant is radiodense. In another embodiment, the
entire implant is biodegradable. Methods of using a biodegradable implant
having a radiodense material and a biodegradable implant that is visible
using an imaging system are also included.