Study of normal anatomical variations in paranasal sinuses using CT scan

2021 ◽  
Vol 18 (1) ◽  
pp. 01-05
Author(s):  
Mahesh Kadam ◽  
Keyword(s):  
Ct Scan ◽  
Paranasal Sinuses ◽  
Anatomical Variations

scholarly journals Evaluation of nose and paranasal sinus disease, anatomical variations by computerized tomography

2017 ◽  
Vol 3 (4) ◽  
pp. 898
Author(s):  
Prakash S. Handi ◽  
Mallikarjun N. Patil
Keyword(s):  
Ct Scan ◽  
Paranasal Sinuses ◽  
Anatomical Variation ◽  
Anatomical Variations ◽  
Sinus Surgery ◽  
Type I ◽  
Deviated Nasal Septum ◽  
Radiologic Evaluation ◽  
Road Map ◽  
Preoperative Information

<p class="abstract"><strong>Background:</strong> The anatomy of paranasal sinuses is very complicated. Evaluation of the location, extent of sino nasal diseases and anatomical variations by preoperative radiologic evaluation of the paranasal sinuses is essential in planning surgical intervention. Meticulous radiographic delineation of the small structures in this region, coupled with endoscopic evaluation, provides detailed preoperative information regarding morphology and pathology.</p><p class="abstract"><strong>Methods:</strong> Patients with sinonasal symptoms indicating requirement of CT scan evaluation and aged more than 10 years were included in the study. Each CT scan was interpreted by an otolaryngologist and a radiologist and interpretation was by consensus. The data collected was evaluated and results are reported as rates and proportions.  </p><p class="abstract"><strong>Results:</strong> Sinusitis (single or multiple sinus involvement), nasal polyposis, frontal mucocele and ethmoidal carcinoma with destruction of medial wall of maxilla were the pathologies observed in these CT scans with sinusitis [22 (43.1%)] being the most common pathology observed. Deviated nasal septum [21 (41.2%)] was the most common anatomical variation observed. All patients who had concha bullosa [5 (9.8%)] were observed to have sinusitis involving multiple bilateral PNS. Based on Keros’ classification, olfactory fossa depth type I was most commonly observed followed by type II and type III.</p><p><strong>Conclusions:</strong> CT scan is important in patients undergoing endoscopic sinus surgery for sinonasal diseases where it acts as a road map in identifying the presence, extent of disease and any anatomical variations. This pre-operative CT scan evaluation improves planning and helps in significantly reducing morbidity and possible complications during surgery. </p>

scholarly journals Correlation : Anatomical Variations of Nasal Cavity and Paranasal Sinuses and the Quality of Life Based on SNOTT-22 Score

2021 ◽  
Vol 17 (1) ◽  
pp. 49-60
Author(s):  
Rani Rahmawati
Keyword(s):  
Quality Of Life ◽  
Ct Scan ◽  
Nasal Cavity ◽  
Paranasal Sinuses ◽  
Anatomical Variation ◽  
Anatomical Variations ◽  
Uncinate Process ◽  
Paranasal Sinuses Ct ◽  
Snot 22

This study aims to determine the correlation between the anatomical variations of nasal cavity and paranasal sinuses and the quality of life based on SNOT-22 score in the patients who underwent paranasal sinuses CT scan. The samples are 36 patients with age ≥ 18 years. The method is Chi Square test / Fisher's test and Spearman’s rho test. The results showed that anatomical variations of the nasal cavity and paranasal sinuses from most of the patients who underwent paranasal sinuses CT scan had septal deviation n = 29, p = 0.007 (p <0.05) and concha bullosa n = 15, p = 0.029 (p <0.05). There was a significant correlation between total anatomical variation and quality of life based on SNOT-22 score in the patients who underwent paranasal sinuses CT scan p = 0.025 (p <0.05). There was no correlation between the anatomical variations of frontal cells, agger nasi cells, ethmoid bulla, uncinate process and haller cells and the quality of life based on SNOT-22 score in the patients who underwent paranasal sinuses CT scan.  

scholarly journals Use of Computed Tomography (CT scan) for delineating anatomy and variation of frontal Sinus before Functional Endoscopic Sinus Surgery

2022 ◽  
Vol 9 (3) ◽  
pp. 54-57
Author(s):  
Sajjad Ali Hashmi Syed ◽  
Sadaf Tanveer Khan ◽  
Jawwad Ali Hashmi Syed
Keyword(s):  
Computed Tomography ◽  
Ct Scan ◽  
Paranasal Sinuses ◽  
Endoscopic Sinus Surgery ◽  
Frontal Sinus ◽  
Anatomical Variations ◽  
Functional Endoscopic Sinus Surgery ◽  
Sinus Surgery ◽  
Medical College ◽  
Orbital Roof

Abstract Introduction: For Functional Endoscopic Sinus Surgery (FESS), the surgeon needs an accurate depiction of the anatomy of paranasal sinuses and their variations. Computed tomography (CT Scan) fulfills this requirement by providing detailed anatomy, the anatomical variants, and the extent of the disease in and around the Para nasal sinuses. The aim of this study is to show the anatomy of the Frontal sinus as delineated by the computed tomography. Materials and Methods: STUDY DESIGN: Cross section Descriptive Study. Out of 337 patients above 12 years of age who were referred for computed tomography of paranasal sinuses in the Dept. of Radio- Diagnosis, Govt. Medical College and Hospital from December 2015 till October 2017, 200 adults(males and females) were randomly selected.Of the 200 subjects studied 37(18.5%) subjects had hypoplastic/ non or poorly pneumatised frontal sinuses of which 31 (15.5%) were bilateral and 6 (3%) were unilateral i.e. on right side. Observations and results: Intra frontal cell were seen in about 64 (32%) subjects of which 26 (13%) on right side, 24 (12%) were on left side and 14 (7%) were bilateral. Extension of pneumatisation into crista galli was seen in 16 (8%) subjects and into orbital roof was seen in 6 (3%) subjects. Conclusion: The findings in this study show that anatomical variations in the Para nasal sinuses and nasal cavity are common. Computed tomography is fundamental radiologic investigation for diagnosis of the Sino nasal lesions or pre and post-surgical assessment.

scholarly journals Clinically Significant Variation of Paranasal Sinuses on CT-Scan

2021 ◽  
Vol 10 (02) ◽  
pp. 152-157
Author(s):  
Maryam Faiz Qureshi ◽  
Ambreen Usmani
Keyword(s):  
Ct Scan ◽  
Nasal Cavity ◽  
Paranasal Sinuses ◽  
Structural Changes ◽  
Anatomical Variations ◽  
Causative Factor ◽  
Anatomical Variants ◽  
Important Diagnostic Tool ◽  
History Of ◽  
Clinically Significant

Anatomical variations are not diseases and can be found in every individual. Due to the anatomical variations, the structural changes occur in nearby anatomical relations. By keeping in mind, the vast range of anatomical variations in nasal cavity and paranasal sinuses (PNS), every case of sinusitis must be planned carefully to avoid dreadful complications of surgical procedures. Sinus anatomical variations have been associated with the etiology of sinusitis. In this regard computed tomography (CT) imaging has become an important diagnostic tool. CT Scan imaging of nose and para nasal sinuses is mandatory in patients with history of sinusitis in order to evaluate the detailed anatomy which includes normal anatomy, anatomical variations, bony details and the extent of the disease pathology. Certain anatomical variants are supposed to be a causative factor for development of sinus pathology and hence it becomes compulsory for the radiologist to be aware of the anatomical variants of nasal cavity and PNS especially if the subject is considered for surgical intervention.

scholarly journals Correlation of anatomical variations in chronic sinusitis with diagnostic nasal endoscopy and CT scan of paranasal sinuses: an observational study

2018 ◽  
Vol 5 (1) ◽  
pp. 41
Author(s):  
G. Ramesh Babu ◽  
G. Ravi Kumar ◽  
V. Krishna Chaitanya
Keyword(s):  
Ct Scan ◽  
Paranasal Sinuses ◽  
Middle Turbinate ◽  
Lateral Wall ◽  
Anatomical Variations ◽  
Normal Function ◽  
Sinus Surgery ◽  
Nasal Endoscopy ◽  
Common Finding ◽  
Nose And Paranasal Sinuses

<p class="abstract"><strong>Background:</strong> Drainage and ventilation of paranasal sinuses are important for normal function which depends on effective mucociliary clearance. In present study we tried to emphasize variations in lateral wall of nose and clinical features leading to nose and paranasal sinus disease using diagnostic nasal endoscopy and variations in CT scan of paranasal sinuses. The objectives of the study are to observe various anatomical variations in nose and paranasal sinuses and their clinical presentation using diagnostic nasal endoscopy and CT scan of paranasal sinuses and to compare various anatomical variations in nose and paranasal sinuses.</p><p class="abstract"><strong>Methods: </strong>Present study included 54 patients presenting in Department of ENT, Head and Neck Surgery, during February 2015 to February 2017.   </p><p class="abstract"><strong>Results:</strong> Diagnostic nasal endoscopy findings reveal that most common finding was polypoidal changes in nasal mucosa in 36 (66.67%) of patients, followed by mucopurulent discharge in 26 (48.14%), postnasal discharge in 20(37.03%) and 4 (7.40%) patients showed prominent agger nasi cell. CT scan of paranasal sinuses revealed multiple sinus involvement in 41 (75.92%) of patients with partial involvement of sinuses. Complete sinus opacification with pan sinusitis was observed in 9 (16.67%), blockade at osteomeatal complex was observed in 46 (85.18%), paradoxical middle turbinate was observed in 5 (9.25%), Concha bullosa was observed in 12 (22.23%) of patients.</p><p class="abstract"><strong>Conclusions:</strong> Each variation have an anatomic and surgical significance, hence each and every case should be individually studied in detail before undergoing functional endoscopic sinus surgery to maximize patient benefit and to prevent unnecessary complications. Diagnostic nasal endoscopic examination is clinical guide to evaluate disease.</p>

scholarly journals Correlation Between the Opacification Degree of Paranasal Sinuses on CT, Clinical Symptoms and Anatomical Variations of the Nose and Paranasal Sinuses in Patients with Chronic Rhinosinusitis

2021 ◽  
Author(s):  
Mahdi Niknami ◽  
Elham Emami ◽  
Abdolhosein Mozaffari ◽  
Hashem Sharifian ◽  
Sanaz Safari
Keyword(s):  
Ct Scan ◽  
Chronic Rhinosinusitis ◽  
Nasal Obstruction ◽  
Paranasal Sinuses ◽  
Clinical Symptoms ◽  
Anatomical Variation ◽  
Anatomical Variations ◽  
Clinical Findings ◽  
Nose And Paranasal Sinuses ◽  
Ethmoid Sinuses

Objectives: This study aimed to evaluate the correlation between the opacification degree of the paranasal sinuses on computed tomography (CT) with clinical symptoms, and anatomical variations of the nose and paranasal sinuses in patients with chronic rhinosinusitis (CRS). Materials and Methods: This descriptive prospective study evaluated 100 patients (60 males and 40 females), who were diagnosed with CRS by ENT specialists according to the clinical findings, and were scheduled for a CT scan. The patients were requested to express the severity of their symptoms using a visual analog scale. The CT scans of the paranasal sinuses were assessed for the presence of anatomical variations and scored using the modified Lund-Mackay scoring system for the opacification degree of each sinus. The correlations between the anatomical variations and sinusitis, and also between the severity of symptoms/disease severity and CT scores were statistically analyzed. P<0.05 was considered statistically significant. Results: The most common symptoms were purulent (discolored) nasal drainage and nasal obstruction. Septal deviation was the most common anatomical variation. The maxillary and anterior ethmoid sinuses were the most commonly involved areas. The Spearman’s correlation coefficient showed a significant correlation between the sinus involvement and some of the evaluated symptoms, as well as certain types of anatomical variations (P<0.05). Conclusion: Some specific anatomical variations of the paranasal sinuses may predispose them to sinusitis. The CT scan score can predict the severity of many symptoms such as purulent (discolored) nasal drainage, nasal obstruction, hyposmia/anosmia, halitosis, cough, and fatigue, among the other symptoms of CRS.

scholarly journals Frontal sinus mucopyelocele with intracranial and intraorbital extension

1970 ◽  
Vol 3 (1) ◽  
pp. 91-92 ◽  
Author(s):  
S Gupta ◽  
R Goyal ◽  
M Shahi
Keyword(s):  
Ct Scan ◽  
Paranasal Sinuses ◽  
Frontal Sinus ◽  
Visual Loss ◽  
Early Recognition ◽  
Surgical Excision ◽  
Intracranial Extension ◽  
External Approach ◽  
Intracranial Complications ◽  
Symptoms And Signs

This case is related to a 52-year-old lady with proptosis, diplopia and diminution of vision due to a mass lesion in upper medial quadrant of the orbit. CT scan revealed a well defined mass in basi-frontal area with intra-orbital and intracranial extension. On exploring it was found to be mucopyocele of the frontal sinus. Surgical excision was done by external approach. The symptoms and signs resolved completely within a week. Frontal sinus mucopyoceles are benign and curable. Early recognition and management of them is of paramount importance because they can expand and cause local, orbital or intracranial complications. Keywords: Mucocele; mucopyocele; paranasal sinuses; visual loss; proptosis  DOI: 10.3126/nepjoph.v3i1.4287Nepal J Ophthalmol 2011;3(5):91-92

scholarly journals A Radiological Study of Anatomical Variations of Uncinate Process

2016 ◽  
Vol 9 (2) ◽  
pp. 59-61
Author(s):  
Shrinath D Kamath Patla ◽  
Pretty Rathnakar ◽  
Vadisha S Bhat ◽  
Jayaramesh LNU
Keyword(s):  
Clinical Significance ◽  
Paranasal Sinuses ◽  
Intraoperative Complications ◽  
Anatomical Variations ◽  
Uncinate Process ◽  
Ct Scans ◽  
Radiological Study ◽  
Lamina Papyracea ◽  
Endoscopic Surgeon ◽  
Coronal Section

ABSTRACT Aim (a) To study the variations in the superior attachment of uncinate process. (b) Incidence of pneumatization of uncinate process was also studied. Materials and methods A total 200 sides of 100 CT scans of paranasal sinuses coronal section were studied for variations in the superior insertion of uncinate process using Landsberg and Friedman classification. Incidence of pneumatization of uncinate process was also studied. Results In our study out of 200 sides, type 6 attachment was commonest (41%) followed by types 1 and 2. Pneumatization of the uncinate was seen in very small percentage of cases. Conclusion Lateral insertion of uncinate (lamina papyracea + aggar nassi) is the commonest variant followed by the insertion into the skulbase. Pneumatization of uncinate is rare. Clinical significance Though the inferior attachment of the uncinate is almost constant the superior attachment has several variations, the knowledge of which is very important for the endoscopic surgeon to avoid intraoperative complications. How to cite this article Patla SDK, Rathnakar P, Bhat VS, Jayaramesh. A Radiological Study of Anatomical Variations of Uncinate Process. Clin Rhinol An Int J 2016;9(2):59-61.

scholarly journals EVALUATION OF DIAGNOSTICNASAL ENDOSCOPY AND CTSCAN IN VARIOUS SINONASAL DISEASES

2021 ◽  
Vol 9 (10) ◽  
pp. 1144-1149
Author(s):  
Ranjan Kumar ◽  
◽  
Rajeev Chandra ◽  
Om Prakash ◽  
◽  
...  
Keyword(s):  
Ct Scan ◽  
Surgical Intervention ◽  
Maxillary Sinusitis ◽  
Anatomical Variation ◽  
Cost Effective ◽  
Anatomical Variations ◽  
Nasal Endoscopy ◽  
Common Finding ◽  
Polyp Detection ◽  
Intervention Patient

Objective:To evaluate role of Diagnostic Nasal Endoscopy and CT scan in various Sinonasaldiseases with regards to diagnosis and surgical intervention. Patient and methods:This prospective study was carried out in Department of ENT, A.N.M.M.C.H., Gaya on 200 patients with clinical evidence of sinonasal disease who had presented between March 2016 to February 2019. All patients were evaluated with DNE using 0 degree 4mm endoscope and CT scan with 3 mm coronal cuts. Result: Female patients(56%) were more as compared to male(44%) with majority between 21 - 40 yrs. Most common finding on Diagnostic Nasal Endoscopy(DNE) was mucopurulent discharge in middle meatuswhile on CT Scan was maxillary sinusitis(60%). Sinonasal polyp detection was better with DNE.CT has better detection rate of anatomical variation of osteomeatal complex. Conclusion : DNE has become initial tool for diagnosis as it is cost effective and office based procedure. In patients where surgical intervention is required, CT scan has advantage as it provides detailed understanding of anatomical variations. So bothDNE and CT scan should be used in collaborative fashion. Source Of Support:Patients of A.N.M.C.H., Gaya. Conflict Of Interest:None.

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