A 14-year-old girl presented to the rhinology clinic at the request of her primary care physician shortly after a motor vehicle crash. She had undergone workup for a closed-head injury, including computed tomography (CT) of her head. The CT scan revealed no intracranial abnormalities. However, an incidental finding was noted: a large, radiopaque mass was observed nearly filling the left maxillary sinus (Figure 1and Figure 2). The patient's medical history was that of a healthy teenager. She had no facial or dental pain, pressure, swelling, rhinorrhea, nasal obstruction, or other sinonasal abnormalities. The mass was surgically removed via a transnasal and Caldwell-Luc approach and sent for histologic analysis.
Leem TH, Kingdom TT. Radiology Quiz Case. Arch Otolaryngol Head Neck Surg. 2008;134(6):667. doi:10.1001/archotol.134.6.667