It now seems very likely that my father's Leukemia has returned. He is almost 82 years old and had been in remission since his last round of chemotherapy almost 9 years ago. A CT Scan of some lumps in my dad's abdomen seem to be consistent with the doctors' theory that they are extremely swollen lymph nodes. (They are now doing another CT scan of his right ankle, which has swollen up to double its normal size.) That could have multiple causes, but cancer is the most likely. We're going to need to go to an oncologist for a biopsy.
I'm sorry to hear that. Hope it goes well for him.