Thank you for your well wishes, @mepowers. I am so happy to hear about your continued remission & wish you the best. Yeah even with GBM patients, I have heard some do not get radiation & instead pursue chemo options such as intra-arterial chemo regimens/pill per day regimens of chemo so I'll be sure to ask his neuro-oncologist all these questions today.

I am curious to hear how they diagnosed your CNS Lymphoma - were the doctors sure it was CNS Lymphoma primarily based on initial MRI scans or was a biopsy/craniotomy required to get tissue samples? We really thought that my dad's lesions could be CNS Lymphoma given his hx of Chronic Lymphocytic Leukemia (CLL), the response/shrinkage in his contrast enhancing lesion after a week of Dexamethasone (prior to surgery), and especially since gliomas and CNS Lymphomas look similar on imaging in immunocompromised patients. However, the path report indicates otherwise - it indicates GBM.