PMC6910750_01
Lateral view of the paranasal cavity radiograph; a disc-shaped radio-opacity identified over the nasal region (arrow).
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F1
Subsequent investigation with a lateral view of the paranasal sinus radiograph unveiled a disc-shaped radio-opacity over the nasal cavity, which bore a resemblance of a button battery (figure 1).
0  angled rigid endoscopic view of the right nasal cavity; right anterior part of inferior turbinate (*), embedded button battery (arrow).
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F2
Intraoperatively, a huge posterior bony septal perforation was observed, through which the button battery embedded between the nasal cavities (figure 2).
30  angled rigid endoscopic view of the right nasal cavity following the removal of button battery; nasal septum (*); huge perforation of the posterior nasal septum surrounded by necrotic nasal mucosa patches (arrow).
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F3
There was a spillage of corrosive content from the battery, thereby contributed to the surrounding nasal mucosa necrosis and inflammation (figure 3).
Button battery retrieved from the nasal cavity.
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F4
The button battery was retrieved with an alligator forceps under scope guidance (figure 4).
30  angled rigid endoscopic view of the posterior part of nasal cavity after irrigation; huge posterior septal perforation with part of exposed vomer bone (arrow), the right middle turbinate and posterior part of right inferior turbinate were not identified; left middle turbinate (* in red); left inferior turbinate (* in black).
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F5
The surgical field was then thoroughly irrigated with copious amount of saline and diluted povidone solution (figure 5).