VARIATIONS OF CT SCAN IN SINUSITIS

Abstract

Rajesh Kanagaraj1, Balachandar Chinasamy Subramanian2, Antony Cruez Jesudoss3

BACKGROUND CT scan paranasal sinuses has become the gold standard for the diagnosis and subsequent treatment of sinusitis. A thorough knowledge of CT sinuses is therefore very important for any surgeon who undertakes FESS surgery. An understanding of the different variations that can occur and how they lead to sinusitis can help in better management of the condition.
MATERIALS AND METHODS The present study is Retrospective study conducted in 50 patients reported to ENT department and diagnosed as sinusitis and sent for CT scan PNS in Radio-diagnosis department, Chennai Medical College Hospital Research Centre, Irungalur, Trichy.
RESULTS Here 50 patients suffering from chronic sinusitis were evaluated by CT PNS – coronal and axial views. The anatomical variations in the osteomeatal complex were noted. Deviated nasal septum was identified in majority of cases (40%). Agger nasi cells were the next common variant (35%). Concha Bullosa were found in 15% of cases. Paradoxical middle turbinate was found in 5% of cases. Lateralized uncinate was identified in 3% of cases. Onodi cells were found in 6% of cases. Haller cells were found in 5% of cases.
CONCLUSION
In addition, one also gets an idea of the location and course of the various important structures, thereby minimizing any adverse events. All the patients underwent FESS 1 surgery. The findings were confirmed on nasal endoscopy2. The study underlines the importance of identifying the different anatomical variations in CT of the paranasal sinuses and their contribution to sinusitis.

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