@dorothy314, photodynamic therapy is a treatment option for some patients with esophageal cancer. Read more about it here:
- Photodynamic therapy Mayo Clinic https://www.mayoclinic.org/tests-procedures/photodynamic-therapy/about/pac-20385027

I'm tagging @jcrs and @davidwrenn, who have mentioned photodynamic therapy, but I don't know if they have had it.

Dorothy, is this a treatment option that your cancer team has talked about with you?