grading
Synonyms: grade
Definition: A system for classifying cancer cells in terms of how abnormal they appear when examined under a microscope. The objective of a grading system is to provide information about the probable growth rate of the tumor and its tendency to spread. The systems used to grade tumors vary with each type of cancer. Grading plays a role in treatment decisions. The Gleason grading system is perhaps the most popular.
For more information: See Gleason Score and Gleason's drawing at this site, of the five types of cells.
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Definitions are provided for education only and are not medical advice. Created exclusively for Phoenix5. © 2002 Phoenix5.
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