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Int. Arch. . vol.19 número2

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Fig. 1 Axial computed tomography shows sphenoid sinus opaci fi cation and greater wing of sphenoid compatible with isolated left sphenoiditis.
Fig. 3 Preoperative coronal computed tomography shows left sinus opaci fi cation evolving to extradural empyema.
Fig. 7 Preoperative coronal computed tomography demonstrates partial sphenoid sinus opaci fi cation and right sphenoid mass  occu-pying precise limits compatible with right sphenochoanal nasal cavity polyp.
Fig. 10 Preoperative axial computed tomography demonstrating areas of thickening and sclerosis in the left sphenoid sinus.

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