A member asked:

My friend finished chemo for stage 4 breast cancer in feb. she has had loose bms and stomach aches since she started chemo. cea level 5.1. thoughts?

4 doctors weighed in across 2 answers
Dr. Carlos Encarnacion answered

Specializes in Medical Oncology

Unrelated: She seems to be experiencing some of the side effects often seen in patients on chemo, mainly GI upset and diarrhea. The CEA level has nothing to do with that. Make sure her oncologist knows about these symptoms. If she truly finished all chemo, it should improve but if she finished a cycle of chemo and is to get more, the problem may persist or worsen.

Answered 2/13/2015

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Possiblities: The CEA is a poor indicator of breast cancer status. However, patients with one type of cancer can develop other cancers and the elevation and symptoms could reasonably lead one to have a colonoscopy performed. However, remember that chemotherapy can also cause immediate and delayed side-effects. Best to speak with you primary and the oncologist to determine the best work-up.

Answered 2/13/2015

4.9k views

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