RADIOPAQUE BIODEGRADABLE POLYMER FOR TRACKING BREAST TISSUE TUMOR CAVITY AFTER LUMPECTOMY
Disclosed herein is a device made of biodegradable polymer and a radiopaque agent, wherein the device has a patterned shape with a high ratio of surface area to volume (e.g a scaffold, net, mesh, collapsible). A method for marking a post-operative cavity using a device made of biodegradable polymer and radiopaque agent is also disclosed.