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Egyptian Journal of Radiology and Nuclear Medicine
Fig. 6 | Egyptian Journal of Radiology and Nuclear Medicine

Fig. 6

From: FDG-PETCT versus contrast-enhanced computed tomography in diagnosis of post-therapeutic colorectal cancer recurrence and metastases

Fig. 6

A 70-year-old female patient who underwent colonic mass surgical resection for pathologically proven adenocarcinoma, presented 4 months later by elevated tumor markers. a Axial CT image in lung window showing right upper lobe pulmonary nodule. b Axial PET attenuated corrected image and axial fused PET–CT image of right upper lobe metabolically active nodule (arrows). c Post-radiofrequency ablation assessment for the pulmonary nodule by contrast-enhanced CT showed stationary size depending on the size criteria (appreciable change in size needs time). d PET–CT revealed a photopenic area corresponding to the ablated nodule with no metabolically active lesion within

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