New light therapy promising for cancer

I hope that your survey of cancer treatments will include photodynamic therapy. This technique uses light to destroy tumours. The patient is injected with a marker substance which attaches itself to cancer cells and makes them sensitive to light. Thi

In the UK, the Cancer Rsesarch Campaign is supporting research into photodynamic therapy. A light source called the Paterson Lamp has been developed which reduces the cost of treatment by replacing the laser source used in US research. At present this lamp is being used to treat non melanoma skin cancer. In fact the technique is applicable to other cancer sites and seems likely to have a great future, all the more so because it is a "conventional" treatment. Jeffrey Darlington, Richmond, Surrey......