Still has “Low grade” fever !!!

Hi,
Could anyone here who had Y90 radioembolization help be about his/her experience?? I’m really confused.
Mom had her 2nd radioembolization on 14/4/2012 she had fever (sometimes exceeded 38 celsius) and accidentally discovered pnumonia and had antiobiotic combination for 10 days with improvement, three days later fever recurred and i asked her to have abdominal ultrasound which showed luid around her gall bladder with pelvic and abdominal ascites, and picture of cholangitis with enlarge lymph nodes ( which her hepatologist and oncologist considered them to be reactive to inflammation not malignant lymph nodes), three days later follow up ultrasound showed regression in fluid and lymph nodes, she is on her 8th day of antibiotic but at day time she is afebrile and temperature starts to rise at about 4 o’clock (pm) its maximum limit is 37.6 celsius, her interventional radiologist told me that the only explanation is tumor lysis but usually it doesn’t take more than one month ofter embolization and also it is usually constant allover the day.

My question is: Did anyone here have fever for one month after radioembolization??

Thanks.