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Hi there. Sorry to hear about your pain. Do you know the name of the chemo agent? And which side is affected, right or left?
I see. Do you know if the pain is on the left near the ribs, lower down near the hip, or more toward the back?
Any problems with diarrhea or constipation?
A couple things to look out for. One would be colitis, or inflammation of the colon, which is common with certain chemotherapeutic agents and leads to pain (usually in the left lower quadrant), spasms, and often diarrhea or loosening of the stools. This normally only persists during chemo, and improves after treatment is complete. It does not show up on CT or blood tests, but would be apparent with colonoscopy. A second consideration would be a kidney stone lodged in the left ureter. This can be from chemo, dehydration, or a combination of the two. While most stones show up on CT, some do not have calcium in them (e.g. cystine, urate) and are radiolucent. You would need an ultrasound to find them. Similarly, if a stone is small enough it may be missed. Either of these conditions could be the cause of your sister's pain. Both should be considered and worked up, if indicated clinically.
Hi there, how is your sister doing today? Let me know if you have any additional questions.
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