Clinical significance of parotid gland incidentalomas on

Clinical imaging · Jul 2015

Clinical significance of parotid gland incidentalomas on (18)F-FDG PET/CT.

The aim of this study was to evaluate the frequency and clinical significance of incidental focal uptake of (18)F-fluorodeoxyglucose (FDG) on positron emission tomography/computed tomography (PET/CT) in the parotid glands of cancer patients. A retrospective review of 7,252 oncologic PET/CT studies was done. FDG positive parotid incidentalomas occurred in 0.4% of PET/CT scans, of which only 4% were malignant. PET/CT was unable to differentiate benign from malignant parotid lesions based on SUVmax alone. (18)F-FDG positive parotid incidentalomas can be managed conservatively, however patients with a prior history of lymphoma had a much higher risk of parotid malignancy and require further investigation.

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- William Makis, Anthony Ciarallo, and Akshat Gotra.
- Department of Diagnostic Imaging, Cross Cancer Institute, 11560 University Ave NW, Edmonton, Alberta T6G 1Z2, Canada. Electronic address: makisw79@yahoo.com.
- Clin Imaging. 2015 Jul 1; 39 (4): 667-71.
AbstractThe aim of this study was to evaluate the frequency and clinical significance of incidental focal uptake of (18)F-fluorodeoxyglucose (FDG) on positron emission tomography/computed tomography (PET/CT) in the parotid glands of cancer patients. A retrospective review of 7,252 oncologic PET/CT studies was done. FDG positive parotid incidentalomas occurred in 0.4% of PET/CT scans, of which only 4% were malignant. PET/CT was unable to differentiate benign from malignant parotid lesions based on SUVmax alone. (18)F-FDG positive parotid incidentalomas can be managed conservatively, however patients with a prior history of lymphoma had a much higher risk of parotid malignancy and require further investigation. Copyright © 2015 Elsevier Inc. All rights reserved.

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Clinical significance of parotid gland incidentalomas on (18)F-FDG PET/CT.

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