[A case of diagnosing and treating the remaining foreign body in nasal sinus and cranium via orbit].

This paper mainly reports a case with the foreign body staying in nasal sinus and cranium via orbit. CT manifests the foreign body staying in ethmoid sinus and entering the bottom of cranium. After completing the relevant inspection, the patient unerwent right eye exenteration, endoscopic sinus surgery with general anesthesia in emergency to take out the foreign body in nasal sinus, and Cerebrospinal fluid leak repair surgery . Then the patient recovers well, futhermore, the symptom of cerebrospinal fluid leakage doesn't appear after five months follow-up.