Performing an additional lateral decubitus PET/CT scan to resolve a respiratory motion artifact

Respiratory motion artifacts may affect whole body 18F-FDG PET / CT scans interpretation, especially when lesions are localized between the liver and lung. We report a case of a patients affected by breast cancer who underwent PET/CT after therapy; a focal 18F-FDG uptake of not univocal interpretation was observed between liver and pleura. A subsequent acquisition on the right lateral decubitus showed the pleural location of lesion, thus improving the diagnostic accuracy of the PET/CT finding.