Abstract
Objectives: This study aimed to determine the prevalence of the anatomical variations of themiddle turbinate among adult Sudanese population which include Concha Bullosa (CB) andParadoxical middle turbinate (PMT) and their relationship with age and sex.
 Methods: The studypopulation involved 29 males (47.5%) and 32 females (52.5 %) with a mean age of 37 years.Exploration was done in the radio-diagnostic department of Ribat University Teaching Hospital,Khartoum- Sudan in the period from January to September 2018. Patients were scanned on slicecollimation of 1mm thickness with a slice thickness of 4 mm. Computed Tomography (CT) scanswere retrospectively reviewed for the presence of CB and PMT coronal planes, bony windowsand reported the results in the datasheet. Statistical analysis was performed using SPSS andcompared with previous results on similar studies.
 Result: In the current study, the prevalence ofthe CB was 22.9%, observed bilaterally in 6 cases (9.8%), unilaterally in 8 (13.1%). PMT waspresent only in 3 cases (4.9%) all of them were unilateral.
 Conclusion: Computed Tomography(CT) may easily identify such uncommon anatomic variations of the osteomeatal region,determination of these variations aids in providing a better surgical orientation and avoiding orminimizing the possible complications.
 Bangladesh Journal of Medical Science Vol.20(1) 2021 p.62-67
Highlights
From the lateral wall of the nasal cavity,there are three nasal conchae projecting downwards[1]
Study design: An observational, analytical cross-sectional study of adult Sudanese patients depending on their age and sex was conducted to determine the prevalence of clinically significant anatomical variations of the middle turbinate
Pneumatization of the middle concha is divided into three groups: lamellar type - the pneumatization of the vertical lamella of the concha; bulbous type -pneumatization of the bulbous segment; extensive CBpneumatization of both the lamellar and bulbous parts[11].The true concha bullosa is produced following pneumatization of both portions of the middle nasal concha[19]
Summary
From the lateral wall of the nasal cavity,there are three nasal conchae (turbinate bones old name called by Otorhinolaryngologist) projecting downwards[1]. The nasal turbinates are important anatomical structures within the nasal cavity[2]. While the inferior one is a separate bone, the others are parts of the ethmoid bone. Their position and relationship to other important anatomic landmarks are extremely important especially in non-invasive endoscopic skull base and ENT (ear, nose, and throat) surgical procedures[3]. Concha bullosa is the most common anatomic. 1. Dr Gisma Ahmed Madani, Assistant Professor, Department of Anatomy, Ibn Sina National College for Medical Studies, K.S.A
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