Intraorbital wooden foreign body penetrating an ethmoid sinus.

概要

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A 48-year-old man riding a motorcycle ran into a pine tree and suffered a small injury of the left medial lower eyelid. He consulted his family doctor and was told that his wound was too small to be sutured. The skin closed, but after a while a purulent discharge and fistula formation occurred at the same site. Three months after the injury he was referred to our hospital. Computed tomography revealed that an intraorbital foreign body had penetrated the ethmoid sinus. Under local anesthesia a left medial canthal incision was performed. The wooden foreign body, 4.5cm long and 4mm in diameter, was removed from the surrounding granulation tissue in the orbit. Two weeks later, a small wooden fragment was spontaneously extruded from the operative wound. In this case, the foreign body had not been found for a long time because i t penetrated the posterior ethmoid sinus without any damage of the visual organs. No matter how small an eyelid injury is, one should be aware of the possibility of deeper damage and of persistent foreign bodies. In this case computed tomography was helpful in the diagnosis of the radiolucent wooden foreign body in the orbit and in the ethmoid sinus.
耳鼻咽喉科臨床学会の論文