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Photodynamic Therapy (PDT) treating skin cancer on leg - Stock Image

Stock Photo: 13117632
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Description

Hi-tech medicine. A patient lies under powerful LED lights to destroy basal cell carcinomas on his leg, which has been pre-treated with a chemical called methyl-levulanic acid.

The chemical is preferentially absorbed by cancer cells over several hours. It is then converted into a cell-poison by the bright red light, killing the cancer cells in eight minutes.

The procedure is known as Photodynamic Therapy (PDT). It has a success rate comparable to surgery but gives a much better cosmetic result.
Shot with Canon EOS 1Ds Mark III.
Click here for more Cancer related images:
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