Normal Nasopharyngeal Measurement by Computed Tomography in Adult.

Background: This study aims to investigate the detailed computed tomography (CT) measurement of the nasopharynx (NP) in normal adult detecting mean of its dimension and relation of that measurement to that of the sphenoid sinus.

Methodology/principal: A normal paranasal CT scan and a straight nasal septum of 128 individuals (256 sphenoid sinuses) were included in the study. Axial images were acquired with multiplanar reformates to obtain delicate details in coronal and sagittal planes for all subjects.