CONCLUSIONS
In this paper, we reported a case of an unusual metallic foreign body
identified in the sinus cavity and that remained asymptomatic for about
40 years. Although there are potential risks for sinus infection, not
all retained foreign bodies require immediate removal. Therefore, timing
and approach for retrieval should be considered and validated by
additional studies. In general, foreign bodies that can easily be
removed by an endoscopic approach may prompt surgical removal, while
cases with significant risks associated with removal may warrant an
observation approach.