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Imaging. a Mass occupying the right sinonasal cavities characterized by predominantly isointense signaling in T2-weighted images. b Heterogeneous contrast enhancement in T1-weighted images; presence of inflammatory stagnation within the right maxillary sinus. c Intense 18FDG-PET-CT scan signaling in the right nasal fossa (SUVmax 15.4). d Postsurgical defect in T2-weighted images at MRI
