What is photopheresis?

Photopheresis or extracorporeal photoimmune therapy is a procedure that might be recommended by your doctor to prevent or to treat graft versus host disease (GvHD). This procedure offers another way to try to suppress the donor lymphocytes (type of white blood cells) that stimulate immune reactions and aid in the development of GvHD.

How can this procedure help me?

By treating your lymphocytes during photopheresis, their function is altered. When the treated lymphocytes are re-infused, they will stimulate an immune response in your body to fight the development or progression of GvHD. Your doctor might use photopheresis alone or in combination with other treatments.

Last reviewed by a Cleveland Clinic medical professional on 08/08/2019.

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