Online ISSN: 2515-8260

Keywords : Anatomical variations

The frequency of anatomical variations of paranasal sinuses on computed tomography

Dr. Pavan Kumar B,Dr. Mohan Kumar,Dr. M Ramya,Dr. Manohar Kumar KR

European Journal of Molecular & Clinical Medicine, 2021, Volume 8, Issue 4, Pages 2421-2427

Paranasal sinuses are the group of air-filled spaces developed as an expansion of the nasal
cavities. These air filled cavities mostly shows the complex design and also shares relations
with the adjacentstructures.Ventilation and drainage are the two most important factors in the
maintenance of normal physiology of paranasal sinuses and their mucous membranes. During
the study period, a total of 100 cases were evaluated who were referred from Department of
ENT to the Department of radio diagnosis to evaluate the paranasal sinuses by computed
tomography. The cases in acute phase of the disease were treated conservatively with a
course of antibiotics, topical and oral decongestants and the cases referred after persistent
symptoms and signs were counselled regarding imaging of nose and PNS by CT scan,
Written informed consent was taken and data regarding the patient was collected in a case
proforma. The intersphenoid septum was left sided in majority of cases i.e. 43 (43%). It was
right sided in 38(38%) and in 43(%) of cases it was in central

Relationship between various anatomical variations and maxillary sinusitis by using computed tomography scan

Dr. Sravan Kumar K, Dr. M Ramya,Dr. Pavan Kumar B, Dr. Manohar Kumar KR

European Journal of Molecular & Clinical Medicine, 2021, Volume 8, Issue 4, Pages 2428-2433

Identifying the predisposing factors is therefore important in understanding the
pathophysiology of chronic rhino sinusitis. Main etiology of respiratory CRS includes
structural anatomical obstruction, recurrent upper airway infections,common allergies,
biofilm formation and less commonly mucosal ciliary dyskinesia, MPS
(mucopolysaccharidosis) and cystic fibrosis. These etiological factors which impairs the
mucociliary clearance and causes stasis of secretions which constitutes the primary
pathophysiology for the chronic rhino sinusitis. CT scan was done for these 100 cases with
THOSHIBA Multi detector 16 slice CT machine. 0.5mmhigh resolution with 1mm
reconstruction, coronal,sagittal and axial sections were reviewed. The presence of anatomical
variations and sites of involved sinuses based on CT findings were investigated. Maxillary
sinusitis was seen in 63 cases out of which, 34 cases of maxillary sinusitis were associated
with anatomical variations.Ethmoid bulla in 2 cases.Uncinate process pathologies noted in2