Photodynamic therapy

Knowing for photodynamic therapy,if there is application in metastatic sarcoma to the lungs?

In theory, there could be an application as the following article suggests:

http://www.clinorthop.org/journal/11999/466/7/284_10.1007_s11999-■■■■■■■■-6/2008/Photodynamic_Therapy_with_ATX-S10NaII_Inhibits_.html

I've never heard of any patient who had it. One limitation of photodynamic therapy is that light has to be able to reach the tumor. That makes it unpractical in most cases, unless you use it at the moment of surgery or if the location of the tumor is close to the skin or can be reached by fiber optic.