case_images: PMC6910750_01
case_images: Lateral view of the paranasal cavity radiograph; a disc-shaped radio-opacity identified over the nasal region (arrow).
case_images: fmch-2019-000137f01.jpg
case_images: PMC6910750_01_fmch-2019-000137f01.jpg
case_images: F1
case_images: 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).
case_images: 0  angled rigid endoscopic view of the right nasal cavity; right anterior part of inferior turbinate (*), embedded button battery (arrow).
case_images: fmch-2019-000137f02.jpg
case_images: PMC6910750_01_fmch-2019-000137f02.jpg
case_images: F2
case_images: Intraoperatively, a huge posterior bony septal perforation was observed, through which the button battery embedded between the nasal cavities (figure 2).
case_images: 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).
case_images: fmch-2019-000137f03.jpg
case_images: PMC6910750_01_fmch-2019-000137f03.jpg
case_images: F3
case_images: There was a spillage of corrosive content from the battery, thereby contributed to the surrounding nasal mucosa necrosis and inflammation (figure 3).
case_images: Button battery retrieved from the nasal cavity.
case_images: fmch-2019-000137f04.jpg
case_images: PMC6910750_01_fmch-2019-000137f04.jpg
case_images: F4
case_images: The button battery was retrieved with an alligator forceps under scope guidance (figure 4).
case_images: 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).
case_images: fmch-2019-000137f05.jpg
case_images: PMC6910750_01_fmch-2019-000137f05.jpg
case_images: F5
case_images: The surgical field was then thoroughly irrigated with copious amount of saline and diluted povidone solution (figure 5).