Hi, my dad (aged 75) was diagnosed with plasmablastic lymphoma (PBL) last week following a biopsy on his gum tissue. He has been offered DA-EPOCH chemo, or a combination of CHOP and methotrexate, possibly followed by radiotherapy. Treatment is due to start on 13th April. He is incredibly fit and healthy and has no other symptoms. He is understandably very concerned about the impacts of chemo, DA-EPOCH especially, on weakening an otherwise healthy immune system. His preferred treatment is CHOP with radiotherapy. Has anyone had recent experience of this diagnosis they could share please?