Photodynamic Therapy (cont.)
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What is the chance that my precancers will recur?
While PDT is a very effective treatment, there is a reasonable chance that you
may continue to need periodic treatments for precancers depending on your
individual skin and severity of prior sun damage. Often there are layers of
underlying sun damage from prior years that rise to the surface over time.
A skin precancer or cancer may recur or a new cancer may arise in the same
or adjacent area even after photodynamic therapy or other treatments. Some skin
precancers are more aggressive than others and need additional treatment and
closer follow-up.
Sun-damaged skin frequently needs additional follow-up and
possible further treatment, at least annual rechecks and possible touchup PDT
treatments are advised. Several studies have shown that photodynamic therapy
tends to have a cure rate comparable to the traditional treatment with fluorouracil.
It is important to note that PDT may not be necessarily curative
in advanced skin cancer (rare cases). This may require one or more procedures
such as biopsy, surgery, radiation or other procedures to fully treat the
lesion.
Follow-up appointments with your dermatologist or physician are very
important, especially in the first few years after photodynamic therapy. Many
patients are seen every four to six months after their diagnosis of precancers of the
skin.
Self-skin examinations monthly are good practice for patients with a
history of skin cancer. Any changing or new growth should be promptly checked by
your physician. More regular follow-up appointments may be needed for those with
more aggressive tumors or tumors in high-risk areas. Your physician will
recommend the proper follow-up for your specific condition.
Last Editorial Review: 7/24/2008
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