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  Indian J Med Microbiol
 

Figure 2: (a and b) Coronal CT image shows the antrochoanal polyp (asterisk) filling the whole left maxillary sinus, protruding from the accessory maxillary sinus ostium. There is a retention cyst in the contralateral maxillary sinus (a). Axial CT image shows the same mass growing posteriorly to reach the nasopharynx (arrow) (b)

Figure 2: (a and b) Coronal CT image shows the antrochoanal polyp (asterisk) filling the whole left maxillary sinus, protruding from the accessory maxillary sinus ostium. There is a retention cyst in the contralateral maxillary sinus (a). Axial CT image shows the same mass growing posteriorly to reach the nasopharynx (arrow) (b)