Comparative study between diagnostic nasal endoscopy and computed tomography of PNS in sino nasal diseases

Mallikarjun S. Tegnoor, Joseph Williams George, Williams George, Ramchandra Joshi


Background: The objective of this study is to compare the tomographic findings to the nasal endoscopy findings in patients with chronic sino-nasal diseases. This study aims to compare CT scan and DNE in sino-nasal diseases.

Methods: 50 Patients attending ENT, OPD, BTGH with any sino-nasal complaints lasting for more than 4 weeks and not responding to medical line of management. Patients are selected by random sampling method. Patients were evaluated with CT scan and DNE.

Results: The most common co-morbidity found among the patients is chronic rhino sinusitis in 31 cases (62%). Middle meatal purulent secretions are the most obvious finding in DNE evaluation seen in 31 (62%) cases. Anterior ethmoidal sinus haziness is seen in 37 (74%) cases on CT scan with majority of cases showing associated sinus involvement.

Conclusions: Thereby indicating that in all patients with sino nasal diseases both CT scan and DNE has to be done, to know the exact pathology and to plan for further management. Both CT scan and DNE are complimentary to each other.


Sino nasal disease, Computerized tomography, Diagnostic nasal endoscopy, Anatomical variants

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Dwivedi AND, Singh KK. CT of the paranasal sinuses: normal anatomy, variants and pathology. J Optoelectronics Biomedical Materials. 2010;2(4):.281–9.

Vining EM, Yanagisawa K, Yanagisawa E. The importance of preoperative nasal endoscopy in patients with sinonasal disease. Laryngoscope. 1993;103:512-9.

Llyod GAS, Lund VJ, Scadding GK. CT of the paranasal sinuses and functional endoscopic surgery: a critical analysis of 100 symptomatic patients. J Laryngol Otol. 1991;105:181-5.

Cooke LD, Hadley DM. MRI of the paranasal sinuses: incidental abnormalities and their relationship to symptoms. J LaryngolOtol. 1991;105:278-81.

Sheetal D, Devan PP, Manjunath P, Martin P, Satish Kumar K, Sreekanth A. CT PNS- Do We really require before FESS? J Clin Diag Res. 2011;5(2):179-81.

Naghibi S, Zojaji R, Hesari MK, Hashemi AH. Sinus CT scan and Functional Endoscopic Sinus Surgery findings in chronic sinusitis: A Comparitive study. Iranian J Radiol. 2008;5(1):13

Venkatachalam VP. Bhat A. Functional endoscopic sinus surgery- A new surgical concept in the management of chronic sinusitis. Indian J Otorhinol Head Neck Surg. 2000; 52:3-16.

Fikerkasapoglu, Selcukonart, Oguzbasut. Preoperative evaluation of Chronic Rhinosinusitis patients by conventional radiographics, computed tomography and nasal endoscopy. Kulak Burun BogazIhtisDerg. 2009;19(4):184-91.

Jareoncharsri P, Thitadilok V, Bunnag C, et al. Nasal endoscopic findings in patients with perennial allergic rhinitis. Asian Pac J Allergy Immunol. 1999;17(4):261-7.

Patel AK, Patel A, Sing S, Sharma MK. The study of functional endoscopic sinus surgery in patients of sinus headache. International J Biol Med Res. 2012;3(3):1924-30.

Fadda GL, Gisolo M, Crosetti E, Fulcheri A, Succo G. Intracranial Complication of Rhinosinusitis from Actinomycosis of the Paranasal Sinuses: A Rare Case of Abducens Nerve Palsy. Case Rep Otolaryngol. 2014: 601671

Talaiepour AR, Sazgar AA, Bagheri A. Anatomical variations of the paranasal sinuses on CT scan images. J Dentistry. Tehran University of Med Sci. 2005;2(4).

Duarte AF, Solerde C, Zavarezzi F. Nasal endoscopy associated with Para nasal sinus computerized tomography scan in the diagnosis of chronic nasal obstruction. Braz J Otorhinolaryngol. 2005;71(3):361-3.