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There is now a CONTENT FREEZE for Mercury while we switch to a new platform. It began on Friday, March 10 at 6pm and will end on Wednesday, March 15 at noon. No new content can be created during this time, but all material in the system as of the beginning of the freeze will be migrated to the new platform, including users and groups. Functionally the new site is identical to the old one. webteam@gatech.edu
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In the operating room, a surgeon sees most of the tumor that needs to be removed but not the microscopic far edges, where malignant cells may be invading nearby tissue. So he or she also removes tissue surrounding the visible tumor. Later, the lab report will tell whether that surgical margin harbors tumor cells and, most important, how close the cells come to the edge of the cut. That distance can determine what happens next. If cancer cells appear all the way to the edge of the resected tissue, there is no clean margin, and the patient may have to undergo more surgery.
