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Popular GLP-1 weight-loss drugs may be interfering with critical PET-CT scans, potentially leading to delayed diagnoses or unnecessary procedures. Research indicates these medications can cause unusual "hot spots" on scans, masking diseases like cancer or making healthy tissue appear abnormal. Doctors urge imaging teams to document patients' medication histories to aid scan interpretation while formal guidelines are developed. Experts advise against stopping GLP-1s before scans, emphasizing the need for accurate diagnosis.

Prepared by Olivia Bennett and reviewed by editorial team.