A Case of a Foreign Body that Penetrated the Maxillary Sinus and Pterygopalatine Fossa and Reached the Sphenoid Bone

Abstract

We report a case of a foreign body that penetrated the maxillary sinus and pterygopalatine fossa and reached the sphenoid bone. The patient was a 74-year-old woman who was brought to the emergency room with an iron gardening rod stuck in her right lip after falling at home. At the time of injury, she was conscious and had no symptoms other than mild temporal pain. A plain CT scan of the head showed the rod entering through the right upper lip, penetrating the anterior and posterior walls of the maxillary sinus, and reaching the greater wing of the sphenoid bone. Given the unknown shape of the tip of the rod and the risk of spinal fluid leakage, massive 日 鼻 誌 62 (4) ：645～650， 2023