I had APR for Stage 2a, low, rectal CA. Complications after surgery included a presacral abscess. Had percutaneous drain tubes through my right butt cheek TWICE!
IN 2014 I had R hip surgery and the MRI that I had done showed a remnant of abscess same presacral spot. Not thought to be recurrence.....since no other markers were elevated. But I just wanted to tell you that....in case you still had residual abscess that was causing some pain in sacrum.
I still have a lot of pain in my right SI joint. That is just to the right and underneath the sacrum. Walking uphill, bending to changes sheets on bed....all of that gives me a lot of pain in right lower back tailbone area.
Don't know if you've had any subsequent CTs or MRIs. My ONC does not believe in additional CTs unless I am having symptoms....or CEA, or other. It was the orthopedic surgeon who authorized the MRI.
Hope you find out what is causing the pain.
F, 62,CRC, Adenoca, mod diff
cT3N0M0 Stage IIA May 2011
APR on 9/27/11 Margins & Nodes Neg
comp.after surg/2 pelvic abscesses/Sepsis/Hosp 40 days
10th FOLFOX 6/6/2012 feet went numb
5FU to finish