Transnasal bamboo foreign body lodged in the sphenoid sinus.

Transnasal sphenoid sinus foreign body is a rare condition. We report a very rare case of transnasal bamboo foreign body lodged in the sphenoid sinus without damages to the orbital wall or skull base. A 69-year-old man fell down onto a bamboo stick, which snapped after penetrating his face through the right nostril. CT demonstrated that the bamboo stick stuck into the middle meatus, penetrated the ethmoid sinus just medial to the lamina papyracea and reached to the sphenoid sinus. No abnormal findings were detected in the orbit or skull base. The foreign body was removed from the nasal cavity without any complication. The endoscope was useful for evaluating possible injuries in the orbit and skull base and confirming the absence of residual foreign bodies.