Flow cytometry measurement
is a biological analysis of chemical or physical properties
of a group of cells or sub-cellular structures, such
as chromosomes. DNA ploidy analysis uses the flow cytometry
measurement can be used after a prostate cancer diagnosis
to scan the number of chromosomes in a cell. If the
number of number of chromosomes is diploid, then the
prostate cancer is less aggressive, however, if the
number is tetraploid or aneuploid, then the disease
is more aggressive. In flow cytometry, cells are stained
with a fluorescent dye then passed in a single line
through a laser beam. Depending on the reaction to the
laser exposure, the cell is placed in a group with other
cells like it. DNA ploidy analysis for prostate cancer
diagnosis and staging is less common then the Gleason
test.
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