Topic: CA 19-9 increasing
hello everyone. My dad had a klatskin's tumour and was resected last August. He had chemotherapy gem/cis (4 cycles) and radiation therapy. He couldn't tolerate xeloda, so he did radiotherapy alone. His CA 19-9 before chemo were 140 and before radiotherapy they dropped to 33.
A month ago he finished his radiotherapy treatment and now his CA 19-9 have risen to 98. I've read that its common to have increased levels of CA 19-9 after radiation, but for how long after treatments it is expected to have high levels of CA 19-9?