A pedunculated polypoid lesion arising from the right maxillary sinus, widening the right accessory maxillary ostia extending in the right nasal cavity further into the posterior nasopharynx and the oropharynx abutting the epiglottis representing giant right antrochoanal polyp.
Mucosal thickening in right maxillary sinus adjacent to the polyp.
Mucosal thickening in left maxillary sinus with soft tissue in bilateral ostiomeatal complexes causing its occlusion.