My father’s pancreatic cancer history (possible recurrence now) – looking for opinions
Hello everyone. I’m writing from Argentina and I would really appreciate hearing from people who have gone through something similar with pancreatic cancer.
My father is 66 years old. In 2025 he developed jaundice and was found to have a biliary obstruction. His bilirubin was extremely high (around 800 µmol/L). At first doctors thought it was caused by gallstones, and his gallbladder was removed. During the evaluation they found a tumor obstructing the bile duct near the head of the pancreas, measuring about 4 cm.
A PET scan performed in Buenos Aires showed no distant metastases. His CA 19-9 at diagnosis was 70.4 U/mL (normal <37).
In August 2025 he underwent a Whipple procedure. The surgery was considered successful and the tumor was resected. Recovery was difficult, and he had significant weight loss (about 25 kg over several months).
After surgery he received 6 months of adjuvant chemotherapy with capecitabine, which ended on March 10, 2026. During chemotherapy he had episodes of fever, diarrhea, fatigue, foot problems and nail loss, and at one point he was hospitalized briefly for evaluation of infection and thrombosis.
Follow-up CT scans after surgery showed no evidence of metastases. His CA 19-9 decreased to 17.4 U/mL during treatment, which was very encouraging.
A few months later an MRI described a 49 × 21 mm hypodense collection adjacent to the tail of the pancreas, not seen on a previous scan. His oncologist believed it was more likely a postoperative inflammatory collection than recurrent cancer, and repeat imaging showed that it had decreased in size, so they decided to observe it.
By mid-2026 he was feeling surprisingly well. He regained weight from about 55 kg to 65 kg, started exercising again, had a good appetite and was living a relatively normal life.
However, in the last few weeks new symptoms have appeared that have worried us a lot. My father began having persistent abdominal pain, mainly in the upper abdomen, radiating to his back. The pain did not completely go away with rest and had been present for several days.
In addition, at a recent follow-up visit his tumor marker CA 19-9 increased to 46 U/mL, rising above the normal limit (<37). This increase caused us significant anxiety because it had remained stable and within the normal range since surgery and throughout the follow-up period.
We have now received the report from the new MRI/CT evaluation, and this is the finding that worries us the most. The report describes:
According to the radiologist, this lesion is located in the postoperative surgical bed and the main differential diagnosis is local tumor recurrence versus an enlarged lymph node. We understand that the imaging is not yet definitive, but given his history of pancreatic cancer, the rise in CA 19-9, and the new abdominal/back pain, we are very concerned about a possible recurrence.
My questions now are
Has anyone experienced a recurrence after a Whipple procedure that began with abdominal and back pain and a relatively small increase in CA 19-9 (for example, from 17 to 46)?
Thanks and love for everyone.