PMC7785389_01
The anterioposterior and lateral view X-ray showing the radio opaque foreign body situated in the left maxillary sinus with head of the foreign body pointing posteriorly.
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fig1
Due to the recurrent visits, the physician ordered an X-ray Waters' view (Figures 1(a) and 1(b)) which revealed a radio opaque shadow of suspected metallic foreign body in the left maxillary sinus.
Sagittal cuts of CT sinus showing the head of the foreign body pointing anteriorly, most likely due to the change in position during the MRI. 3D reconstructed CT scan paranasal sinus showing the foreign body.
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fig2
A paranasal sinus CT with 3D reconstruction (Figures 2(a)-2(c)) was ordered, which revealed the dental burr (foreign body) in the left maxillary sinus.
Endoscopic view showing dental burr in maxillary sinus. Foreign body after removal.
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fig3
The foreign body was removed with curved suction under 30 Hopkins sinoscope vision (Figures 3(a) and 3(b)) without complications.