Computed tomography anatomy of the paranasal sinuses and anatomical variants of clinical relevants in Nigerian adults

Onwuchekwa, RC; Alazigha, Nengi

doi:10.1016/j.ejenta.2016.11.001

Cited by 27 publications

(36 citation statements)

References 20 publications

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“…Compression of the infundibulum and obstruction may occur based on the extent of curvature of the paradoxical middle turbinate. 1 In this study, 3 cases of paradoxically curved middle turbinate were observed.…”

Section: Discussionmentioning

confidence: 99%

“…This is in line with studies by Verma, Kanwar, Khushwa et al [13][14][15] Among the CT scans evaluated, anatomical variations were observed in 31 cases (60.8%). Variation in the nasal septum results in morphological variations such as deviated nasal septum, chondro-vomeral junction deformity, pneumatisation of nasal septum and nasal bone spur 1 . Deviated nasal septum (41.2%) was the most common anatomical variation observed (Figure 1) in this study with similar prevalence reported in studies by Verma et al, Asruddin et al 13,16 Concha bullosa was observed in 9.8% of the cases in this study.…”

Section: Discussionmentioning

confidence: 99%

“…Occasionally, one of them may be very small or absent. Frontal sinuses drain via frontal recess into the middle meatus or ethmoid infundibulum 1 . In this study, one case of bilateral absence of frontal sinus development was observed.…”

Section: Discussionmentioning

confidence: 99%

“…1 The anatomy of paranasal sinuses is very complicated. 2 Evaluation of the location, extent of sino nasal diseases by radiologic evaluation of the paranasal sinuses is essential in planning surgical intervention.…”

Section: Introductionmentioning

confidence: 99%

“…1 Coronal images can be directly acquired, preferentially with the patient in prone position, or otherwise being reconstructed from axial images. Multislice spiral CT allow multiplanar image reconstruction with a quality similar to the images directly acquired in the coronal plane, while eliminating artifacts originated by eventual dental restorations.…”

Section: Introductionmentioning

confidence: 99%

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

Handi¹,

Patil

2017

Int J Otorhinolaryngol Head Neck Surg

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Background: 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.Methods: 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. Results: 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.Conclusions: 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.

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Section: Discussionmentioning

confidence: 99%