(rÄâ²dÃ¤r) 1. A method of detecting distant objects and determining their position, speed, or other characteristics by causing radio waves to be reflected from them and analyzing the reflected waves. The waves can be converted into images, as for use on weather maps.
A high level of the marker may indicate a worsened prognosis in some situations. The most effective and common purpose of tumor markers is to monitor the cancer treatment. As the cancer levels go on decreasing in the body, the marker also goes down. If the marker remains stagnant or increases, it is usually an indication that the patient is not responding sufficiently to the treatment.
Hi, Here's what I found a while back when seeking info about tumor necrosis. I don't remember where the first quote came from, but the second is from the Mayo Clinic: 1) Necrosis in the tumor means that the cancer cells in that area are dead. The pathologic finding of necrosis suggests a fast-growing cancer.This often happens because the tumor runs out of blood supply in the central portion. Without a blood supply, the tumor cells cannot live.i, Here's what I found a while back when seeking info about tumor necrosis. I don't remember where the first quote came from, but the second is from the Mayo Clinic: 1) Necrosis in the tumor means that the cancer cells in that area are dead. The pathologic finding of necrosis suggests a fast-growing cancer.