As seen on Health Heroes, broadcast 4/15/2013 via Discovery Channel.
Advancements in Photodynamic technology have enabled a unique diagnostic method for the detection of bladder cancer. When performing blue-light cystoscopy, the bladder of the patient is instilled with a diagnostic drug one hour before the procedure. The drug contains a substance that is quickly taken up by the cancerous cells , and is transformed. The transformed substance will light up red when illuminated with blue light. When performing the cystoscopy the cystoscope contains both a white and blue light source, so the doctor can switch between them. When the doctor switches on the blue light, the tumor cells light up red, and the unaffected part of the bladder will remain blue.
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