PMC9924702_01
Well-defined soft density mass lesion causing anterior bowing of posterior wall of the maxillary sinus as seen in computed tomography (axial view)
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FIG1
Computed tomography of paranasal sinuses showed a well-defined non-encapsulated soft tissue density mass lesion of size 69.5 x56 x 30 mm epi centered in the right sphenopalatine foramen extending laterally into the pterygomaxillary fascia, infratemporal fossa causing anterior bowing of maxillary sinus posterior wall as seen in Figure 1 and Figure 2.
Coronal view showing soft density mass lesion occupying right nasal cavity and maxillary sinus as seen in computed tomography of paranasal sinuses
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FIG2
Computed tomography of paranasal sinuses showed a well-defined non-encapsulated soft tissue density mass lesion of size 69.5 x56 x 30 mm epi centered in the right sphenopalatine foramen extending laterally into the pterygomaxillary fascia, infratemporal fossa causing anterior bowing of maxillary sinus posterior wall as seen in Figure 1 and Figure 2.
Coronal view showing soft density mass lesion occupying nasopharynx as seen in computed tomography of paranasal sinuses
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FIG3
Medially, it showed extension into the nasopharynx and posterior ethmoid air cells as seen in Figure 3.
Contrast-enhanced computed tomography of paranasal sinuses showing bony resorption
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FIG4
There is bony remodeling with areas of resorption without any destruction as seen in Figure 4.
T2 weighted image showing an iso-hypointense mass lesion causing right globe proptosis in magnetic resonance imaging of the brain, paranasal sinuses, and orbits
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FIG5
There is right globe proptosis and further extension of the tumor into the right cavernous sinus in the extradural space of the right temporal lobe as seen in Figure 5.
T1 weighted image showing a heterogeneously hypointense mass lesion occupying the right maxillary sinus in magnetic resonance imaging of paranasal sinuses
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FIG6
Figure 6 and Figure 7 show the mass extended into the right superior orbital fissure antero-superiorly.
T2 weighted image showing an iso-hypointense mass lesion involving sphenoid sinuses (red arrow) and invading right cavernous sinus (yellow arrow) in magnetic resonance imaging of the brain, paranasal sinuses, and orbits
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FIG7
Figure 6 and Figure 7 show the mass extended into the right superior orbital fissure antero-superiorly.