PMC6604121_01
Initial non-contrast CT sinus coronal view demonstrating intranasal foreign
body displacing the cribriform plate. CT indicates computed tomography.
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Non-contrast computed tomography (CT) sinus confirmed the foreign body with dehiscence of anterior cranial fossa (Figures 1 and 2).
Initial non-contrast CT sinus sagittal view demonstrating size and position
of intranasal foreign body, identifiable as a radiopaque screw. CT indicates
computed tomography.
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Non-contrast computed tomography (CT) sinus confirmed the foreign body with dehiscence of anterior cranial fossa (Figures 1 and 2).
Postoperative non-contrast CT sinus sagittal view after removal of foreign
body demonstrating persistent elevation of anterior skull base. CT indicates
computed tomography.
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Repeat CT scan showed elevation of the skull base and no pneumocephalus (Figure 3).
Postoperative MRI coronal view with arrow demonstrating leptomeningeal
enhancement but no encephalocele or other pathology. MRI indicates magnetic
resonance imaging.
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Post-operative magnetic resonance imaging (MRI) showed some leptomeningeal enhancement but no encephalocele (Figure 4).
Endoscopic image at 6-month follow-up showed patent ethmoid and frontal
sinuses with synechia.
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Ethmoid and frontal sinuses were patent, but the maxillary sinus opening was not visualized (Figure 5).