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Choanal Polyp Originating from the Superior Meatus: An Endoscopic View

A 78-year-old man with a 1-year history of slowly progressive right nasal obstruction with sleep disturbance was referred to our hospital. He had no other health problems. Nasal endoscopy showed a protruding polypoid nasal mass in the right sphenoethmoidal recess extending toward the choana (figure 1). The mass appeared to originate from the right superior meatus. Computed tomography (CT) of the nose and paranasal sinuses showed a large mass occupying the nasal cavity and nasopharynx (figure 2). Right endoscopic sinus surgery was performed under general anesthesia. The pedicle of the polypoid mass originated from along the lateral surface of the superior turbinate in the superior meatus (figure 1, C). First, the pedicle of the mass was sectioned with a through-cutting forceps; subsequently, the mass, including the choanal Figure 1. A: Endoscopic view shows a polypoid mass in the right nasal cavity. B: This view shows the choanal portion of the mass (star). C: View shows the polypoid mass originating from the lateral surface of the superior turbinate in the superior meatus (MT = middle turbinate, S = nasal septum, ST = superior turbinate). D: The excised mass measures 7 × 2.5 cm. . A B