21.   It was difficult to see into the convoluted network of sinuses, so surgeons would remove tissue even before they identified it as diseased, Catalano said.

22.   New technology avoids external incisions, and surgeons have learned that in most cases, they can remove less tissue and get a better result.

23.   No tissue would be removed, they said.

24.   Rivera had inflammatory tissue removed from the shoulder at Columbia Presbyterian Hospital in New York by team physician Stuart Hershon and Dr. Louis Bigliani.

25.   Shawn underwent surgery earlier Saturday to remove dead tissue and cover burn areas with cadaver skin to ward off infection.

26.   Shortly before his deaths nine weeks later, doctors performed a surgical procedure to remove tissue from his abdomen.

27.   Sielaff operated three times over a two-year period, each time removing cancerous tissue from his abdomen.

28.   Sometimes surgeons will remove affected tissue using a laser during the same procedure.

29.   Surgeons say the procedure works by removing damaged tissue and giving the healthier parts of the lung more room to expand and breathe.

30.   The EU wants to force all European abattoirs and all countries exporting meat and cattle by-products to Europe to remove high-risk tissues from carcasses before they are processed.