Fig. 1.

Photomicrograph shows an exophytic tumor with ramifying fibrovascular core (Hematoxylin and Eosin stain, 4× magnification) (a). Photomicrograph shows hyperplastic epithelium with columnar cells, with patchy nuclear disarray. Occasional mitotic figure is noted (yellow arrow) (Hematoxylin and Eosin stain, 10× magnification) (b). Endoscopic view of the right nasal cavity showing a large and well epithelialized ostium (c). High magnification endoscopic view of the ostium showing a smooth base and without any evidence of intrasac papillomas (d).