Abstract
Introduction: Nasal cavity is divided by a vertical osseocartilaginous partition that is approximately median in position known as nasal septum. Deviation of the nasal septum can be defined as any midline deviation. Septal deviations may be cartilaginous type, bony type, or both cartilaginous and bony type. Aim: To look for normal bony structural variations in nasal septum on CT scan in patients attending tertiary care hospital. Materials and Methods: This cross-sectional observational study was conducted for a period of one year. Non-contrast CT scan Nose and Paranasal sinuses (NCCT Nose and PNS) was done using Siemens Somatom Emotion 16 slice Multidetector Spiral Computerized Tomography (CT) scan and data was acquired in axial plane. Results: In our study of 200 cases, 120 (60%) cases were males while females were 80 (40%) .169 (84.50%) cases were having DNS. 126 (63%) were having bony DNS, 3 (1.5%) were having cartilaginous DNS and 40 (20%) were having both bony and cartilaginous DNS out of 169 cases of DNS, 81 (47.93%) cases had DNS towards right side, 74 (43.79%) had DNS towards left, 12 (7.10%) cases had bilateral DNS while two cases had bony DNS on right side and cartilaginous DNS on left side. Conclusion: When significantly deformed, the nasal septum may cause dysfunction and cosmetic deformity, potentially having an impact on many functions of the nasal cavity
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