316042.fig.001a
(a)
316042.fig.001b
(b)
Figure 1: Endoscopic images of the tumor () in the right nasal cavity viewed from the superior (a) and inferior (b) directions. The base of the tumor is seen in the lateral wall of the ostium of the sphenoid sinus (*). ST: superior turbinate, IT: inferior turbinate, NS: nasal septum.