Anatomic Variations of the Paranasal Sinus Region: Evaluation with Multidetector CT

Turna, Önder; Aybar, Mustafa Devran; Karagöz, Yeşim; Tuzcu, Göksel

doi:10.5152/imj.2013.74429

Cited by 16 publications

(6 citation statements)

References 17 publications

(23 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[4,5] The uncinate process pneumatization rate in our research was 5.3 %, the ACP pneumatization rate was 26.7%, and the PP pneumatization rate was 33.3%, all in accordance with what previous studies in the literature have claimed. [1][2][3][4][5][6][7] We classified optic nerve type in the sphenoid sinus according to the classification system proposed by Delano et al [1] Optic nerve Type 1 (54.2%) was the most frequent nerve type, followed by Type 4 (16.9%). In the study by Delano et al, and one by Al-Tameemi et al, the type 1 optic nerve was the most prevalent type, followed by type 2 [1,9] .…”

Section: Discussionsupporting

confidence: 92%

“…[5] Mladina et al determined the incidence of NSD by anterior rhinoscopy, whereas paranasal sinus CT was used by Turna et al and Onwuchekwa et al [3,4,5] The middle concha pneumatization rate was 44.4%, and the superior concha pneumatization rate 13.3% in this study, where only bulbous type of middle turbinate pneumatization was included. In the study of Turna et al [4] , the concha bullosa rate was 57.2%, and the superior concha pneumatization rate 17.9% . In the study by Onwuchekwa et al, [5] the concha bullosa rate was 32.7%, and the superior concha pneumatization rate was 6.3%.…”

Section: Discussionmentioning

confidence: 79%

“…In the study by Bolger et al, the agger nasi cell rate was 98.5%, the Haller cell rate was 45.1%, and in Tonai et al's research, the agger nasi cell rate was 86.7%, and the Haller cell rate was 36%, in line with our findings [6,7] . The Onodi cell rate was 13.5% and 12% in the research undertaken by Turna et al and Arslan et al, respectively [4,8] .…”

Section: Discussionmentioning

confidence: 86%

See 2 more Smart Citations

Evaluation of Anatomical Variations on Paranasal Sinus CT

Yazici¹

2018

ENT Updates

View full text Add to dashboard Cite

Objective: The purpose of this study was to analyze and assess the frequency of anatomical variants of the paranasal sinuses as detected by multidetector computed tomography (MDCT) scanning. Methods: 225 patients (122 males, 103 females) in total, with a median age of 28 (range: 15-77) years were included in this retrospective study. Paranasal computed tomography was conducted in all cases. The scans were reviewed to discover the incidence of nasal septal deviation (NSD), variations of the nasal turbinates, ethmoidal air cells, paranasal sinus pneumatization, accessory pneumatization of the paranasal complex, variations in the sphenoid sinus-related structures and the optic nerve and Vidian canal classification type. Results: NSD was present in 124 (55.1%) of individuals, superior concha pneumatization in 30 (13.3%), middle concha pneumatization in 100 (44.4%), Agger nasi cells (ANC) in 192 (85.3%), Haller cells in 47 (20.9%), Onodi cells in 44 (19.6%), maxillary sinus hypoplasia in 6 (2.6%), frontal sinus hypoplasia in 29 (12.9%), frontal sinus aplasia in 7 (3.1%), sphenoid sinus hypoplasia in 7 (3.1%), uncinate process pneumatization in 12 (5.3%), anterior clinoid process (ACP) pneumatization in 60 (26.7%) and pterygoid process (PP) pneumatization in 75 (33.3%). Optic nerve Type 1 was found in 122 (54.2%) individuals, Type 2 in 29 (12.9%), Type 3 in 36 (16%) and Type 4 in 38 (16.9%). Vidian canal Type 1 was observed in 37 (16.4%), Type 2 in 95 (42.2%) and Type 3 in 93 (41.3%) individuals. Conclusion: The analysis of paranasal CT is crucial in the diagnosis of miscellaneous diseases of the paranasal sinuses. Anatomical variations in the sinuses are highly prevalent, so otorhinolaryngologists should be aware of these variations to allow them to reach precise diagnoses and avoid surgical complications.

show abstract

Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 79%

Section: Discussionmentioning

confidence: 86%

See 1 more Smart Citation

Evaluation of Anatomical Variations on Paranasal Sinus CT

Yazici¹

2018

ENT Updates

View full text Add to dashboard Cite

show abstract

“…This is similar to various literatures in the past. Narendra kumar and Subramaniam Haller cell (HC) 10 15.3% Table- presented it as 76% whereas Turnaet al 10 15 This study showed a prevalence of 58.4%, correlating with the studies of Bolger 16 et al and Khojastepour 17 et al Agger Nasi cells are defined as the anterior-most Anterior Ethmoidal cell, Located anterior to the nasolacrimal duct. The plane of maxillary sinus infundibulum lies posterior to it.…”

Section: Discussionsupporting

confidence: 58%

Variations in Sinonasal Anatomy in Chronic Rhinosinusitis- A Cross Sectional Study

Kapilavaya¹,

Rao²

2018

IJCMR

View full text Add to dashboard Cite

Introduction:The anatomy of nose is one of the most variable in the whole human anatomy. Knowledge about the possible variations is never complete, since there is always a scope to understand better and know more. Numerous studies have been undertaken in the past to better the already existing know-how about the various anatomical deviations in the nose and paranasal sinuses causing chronic rhinosinusitis. The present study was carried to know the prevalence of variations in sinonasal anatomy causing chronic sinusitis.

show abstract

“…Li et al [33] reported the unilateral and bilateral protrusion as 8.68% and 20.57%, respectively. In the study of Turna et al [34], protrusion and dehiscence of ICA were observed in 3% and 24 0.5% of the subjects, respectively. Parvathy et al [35] reported that protrusion of ICA was found in 23.3% of cases (19M; 16F), of whom 42.9% were bilateral, 34.3% were right sided and 22.9% were left sided.…”

Section: Oc Prevalencementioning

confidence: 87%

Evaluation of the relationship between sphenoid sinus morphology and area and volume by computed tomography

Serindere,

Belgin

2023

Oral Radiol

View full text Add to dashboard Cite

The aim of this retrospective study is to evaluate the relationship between sphenoid sinus volume and surface area measurements and its morphology by computed tomography (CT). MethodsIn this study, CT images of 150 patients were evaluated retrospectively. Sphenoid sinus pneumatization types, Onodi cell (OC) prevalence, protrusion and dehiscence of internal carotid artery (ICA) and optic nerve (ON) were evaluated. The volume and area of the sphenoid sinus were calculated using the manual segmentation module using InVesalius software program. ResultsOut of the 150 sinuses, 58 (38.66%), 47 (31.33%), 22 (33%), 4 (2.66%) and 8 (5.33%) were postsellar a, postsellarb,sellar type,conchal and presellar type, respectively. OC was found in 43 (28.7%) of 150 patients. ICA protrusion was observed in a total of 61 CTs (40.7%), 23 (15.3%) were unilateral and 38 (25.3%) were bilateral. Out of 61 CTs (40.7%) who showed ICA dehiscence, 51 (34.0%) were unilateral, and 10 (6.7%) were bilateral. ON protrusion was observed in a total of 43 CTs (28.7%), 14 (9.3%) were unilateral and 29 (19.3%) were bilateral. Out of 28 CTs (18.7%) who showed ON dehiscence, 17 (11.3%) were unilateral, and 11 (7.3%) were bilateral. The mean volume and area of sinus were 9949.4 ± 351.0 mm 3 and 4570.9 ± 1604.9 mm 2 , respectively. ConclusionsSinus volume and area were signi cantly higher in patients with bilateral protrusion of ICA compared to patients without protrusion of ICA. In patients with bilateral dehiscence of ICA, sinus volume and area were found to be signi cantly higher than those without ICA dehiscence. Sinus volume and area were signi cantly higher in patients with bilateral protrusion of ON compared to patients without ON protrusion. Sinus volume and area in males were found to be signi cantly higher than in females.There was a negative correlation between age and sinus volume and area.Sphenoid sinuses are in different variations with the important surrounding neurovascular structures. It is important to examine these relationships in detail before the operation in order to prevent complications.

show abstract

Anatomic Variations of the Paranasal Sinus Region: Evaluation with Multidetector CT

Cited by 16 publications

References 17 publications

Evaluation of Anatomical Variations on Paranasal Sinus CT

Evaluation of Anatomical Variations on Paranasal Sinus CT

Variations in Sinonasal Anatomy in Chronic Rhinosinusitis- A Cross Sectional Study

Evaluation of the relationship between sphenoid sinus morphology and area and volume by computed tomography

Contact Info

Product

Resources

About