Hi @padovani, welcome to Connect.
I don't recall any members talking about proton beam therapy specifically related to liver cancer. However several have mentioned it in the Brain Tumor group as well as related to prostate cancer and other cancers. @cayandray and @sheilazejdlik shared their experiences in these 2 discussions:
- Proton Therapy travel and recommendation https://connect.mayoclinic.org/discussion/proton-therapy-travel-and-recommendation/
- My experience with proton beam therapy & breast cancer https://connect.mayoclinic.org/discussion/breast-cancer-diagnosis-in-february-2016/

Additionally, you can connect with @gene1234 @japv2001 @tinasantos and others talking about liver cancer here:
https://connect.mayoclinic.org/discussion/hepatocellular-carcinoma-liver-cancer/ Hepatocellular Carcinoma / Liver Cancer

Padovani, are you getting proton beam alone or along with other treatments like surgery, chemo or immunotherapy?