Photodynamic Therapy (Red)

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Title: Photodynamic Therapy (Red)
Description: The procedure of photodynamic therapy. In this therapy, patients are injected with a light-activated drug called a photosensitizer which makes cells in their body sensitive to light. The drug is selectively retained by cancer cells as compared with normal tissue. Doctors then use fiber-optic probes to expose the cancer to laser light. This activates the photosensitizer and produces a toxic reaction that destroys the tumor without irreparably damaging the surrounding normal cells.
Topics/Categories: Treatment -- Other Interventions
Type: Color, Photo (JPEG format)
Source: National Cancer Institute
Creator: John Crawford (Photographer)
AV Number: AV-8700-3895
Date Created: 1987
Date Added: January 1, 2001
Reuse Restrictions: None - This image is in the public domain and can be freely reused. Please credit the source and, where possible, the creator listed above.