My dad was diagnosed last december with stomach cancer - through a biopsy performed on his neck. It was determined that the cancerous cells were of abdominal origin. Now, about 4 months after he started chemo, his caregivers are questioning the original pathology report - mainly because he is doing so well -even though the lump on his neck really hasn't changed. They said they may need to revisit the original pathology because there is a possibility it could be lymphoma. He also had an edoscopy done which did say he had a tumor about the size of a quarter - but the only thing that has since shown up on CT scans are multiple swollen lymph nodes. From what I read, I guess it's not that easy to distinguish between gastric lymphoma and gastric adenocarcinoma. The doctor would like to wait and see for another 2 weeks and then take another CT scan. I guess this is the potential for good news, with a more treatable cancer. Has anyone ever experienced anything like this change in diagnoses?