NCIt definition : A procedure which combines apheresis and photodynamic therapy, resulting in blood
being treated with a photosensitizing agent and subsequently irradiated with specified
wavelengths of light to achieve an effect.;
Alternative definition : NCI-GLOSS: A procedure in which blood is removed from the body and treated with ultraviolet
light and drugs that become active when exposed to light. The blood is then returned
to the body. It is being studied in the treatment of some blood and bone marrow diseases
and graft-vs-host disease (GVHD).;
Codes from synonyms : CDR0000403135; CDR0000285637;