scholarly journals The Prevalence of Protrusion of Infraorbital Nerve into Maxillary Sinus Identified on CT Scan of the Paranasal Sinuses at a Tertiary Hospital in Nepal

2018 ◽  
Vol 8 (1) ◽  
pp. 7-12
Author(s):  
Rupesh Gautam ◽  
Deepak Adhikari ◽  
Matrika Dhital ◽  
Sudip Thakur ◽  
Bhawana Adhikari
Keyword(s):  
Ct Scan ◽  
Maxillary Sinus ◽  
Paranasal Sinuses ◽  
Tertiary Hospital ◽  
Sinus Surgery ◽  
Infraorbital Nerve ◽  
Median Length ◽  
Accidental Injury ◽  
Medical College ◽  
Infraorbital Canal

Introduction: The variation in the course of infraorbital canal and protrusion of the infraorbital nerve through it to the maxillary sinus may lead to its accidental injury during reconstructive or endoscopic sinus surgery. Preoperative identification of this variant will prevent unintended injuries. Methods: A retrospective study of 307 patients who underwent CT scan study of the paranasal sinuses at Chitwan Medical College, Nepal was conducted. The protrusion of infraorbital nerve to the maxillary sinus was identified and the length of the bony septum along with the infraorbital nerve was measured. It was further classified as Class I to III according to the length of the septum.Results: The prevalence of protrusion of inferior orbital nerve in our study was 11.40 % and bilateral protrusion was 5.8 %.  The median length of the protruding component along with the septum was 4.9 mm. Conclusion: Preoperative identification of the normal protrusion of infraorbital nerve to the maxillary sinus will prevent accidental injuries during sinus surgery. CT scan of the paranasal sinus would be the modality of choice for identification of this variant. 

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.

Recurrent facial paraesthesia secondary to maxillary antral cyst and dehiscent infraorbital canal: case report

2007 ◽  
Vol 121 (6) ◽  
pp. 1-2 ◽  
Author(s):  
N Sharma ◽  
M De ◽  
P Pracy
Keyword(s):  
Case Report ◽  
Atmospheric Pressure ◽  
Endoscopic Sinus Surgery ◽  
Sinus Surgery ◽  
Infraorbital Nerve ◽  
Rare Presentation ◽  
Infraorbital Canal ◽  
Computed Tomography Scanning ◽  
Nerve Dysfunction ◽  
Tomography Scanning

Objectives: To report a rare presentation of dehiscent infraorbital canal associated with a maxillary antral cyst.Case report: A 26-year-old woman presented with symptoms of right infraorbital nerve dysfunction experienced while travelling by aeroplane. She was subsequently diagnosed with dehiscent infraorbital canal and large maxillary antral cyst on computed tomography scanning. The cyst was removed by endoscopic sinus surgery, and the patient's symptoms resolved.Discussion: The effects of barotrauma on the ears and paranasal sinuses are reviewed. This is the first report of infraorbital nerve dysfunction caused by altered atmospheric pressure in the presence of dehiscent infraorbital canal and maxillary antral cyst. Endoscopic sinus surgery was successful in relieving the symptoms in this case.

scholarly journals Evaluation of Anatomical Variations in Maxillary Sinus and Management of Chronic Sinonasal Disease

2021 ◽  
Vol 10 (38) ◽  
pp. 3351-3355
Author(s):  
Ganesh Manohar Vihapure ◽  
Akshay Sorade ◽  
Kaenat Ahmed ◽  
Lakshmi Sravya Yarlagadda ◽  
Khaleel Basha Munnaru
Keyword(s):  
Computed Tomography ◽  
Maxillary Sinus ◽  
Paranasal Sinuses ◽  
Endoscopic Sinus Surgery ◽  
Anatomical Variations ◽  
Functional Endoscopic Sinus Surgery ◽  
Sinus Surgery ◽  
Successful Outcome ◽  
Operative Care ◽  
Number Of Patients

BACKGROUND The paranasal sinuses (PNS) have various anatomical difference. Computed tomography (CT) is an excellent means of providing anatomical information of this region, disease extent, assisting endoscopic evaluation and guiding treatment. Functional endoscopic sinus surgery (FESS) has become an increasingly popular treatment for chronic sinus diseases. CT of the paranasal sinuses has become a roadmap for FESS. The present study focuses on the assessment of the efficacy, safety and benefits of functional endoscopic sinus surgery in cases of maxillary pathologies and also study the anatomical variations in maxillary sinus in computed tomography and its usefulness in planning and management of chronic sinonasal diseases. METHODS It was a prospective study and a total of 80 patients were included in this study from July 2019 to June 2020 in the Otolaryngology Department, KIMS, Karad. Standard surgical steps were applied in each case according to the extent of disease. All patients underwent standard post-operative care. All findings were recorded and studied. RESULTS Total number of patients were 80. Of which, 31 (38.75 %) patients were operated for ethmoidal polyp, 24 (30 %) for chronic rhinosinusitis, 10 (12.5 %) for antrochoanal polyp, 9 (11.25 %) for rhinosporidiosis and 6 (7.5 %) for inverted papilloma. Postoperative complications were periorbital echymoses (13 %), synechiae (2.5 %), epiphora (2.5 %), infection (2.5 %), hemorrhage (4 %). Complete relief of symptoms were noted in 81.67 % cases. CONCLUSIONS Successful outcome and patient satisfaction post treatment can be obtained by careful evaluation and patient selection by history, examination and most importantly, proper imaging of the sinuses. KEY WORDS Maxillary Sinus, Sinusitis, Nasal Polyp, Paranasal Sinus Disease, Computed Tomography (CT)

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>

The role of CT scan in predicting complications in small ethmoidal osteomas

2019 ◽  
Vol 9 (36) ◽  
pp. 187-190
Author(s):  
Vlad Andrei Budu ◽  
Tatiana Decuseara ◽  
Silviu Crac ◽  
Alexandra Gheorghe ◽  
Alexandru Panfiloiu ◽  
...  
Keyword(s):  
Conservative Treatment ◽  
Medical Treatment ◽  
Ct Scan ◽  
Paranasal Sinuses ◽  
Gold Standard ◽  
Endoscopic Sinus Surgery ◽  
Intraoperative Complications ◽  
Sinus Surgery ◽  
Slow Growing

Abstract Osteomas are slow-growing tumors of the paranasal sinuses, usually found in the frontal and ethmoidal sinus. In many cases, these tumors are discovered by chance or after an imagistic exam for a non-responsive to medical treatment headache. In asymptomatic tumors, conservative treatment is indicated, while in big tumors with complications the gold standard is surgical resection of the tumor. We present two cases of rather similar anterior ethmoidal osteomas in which the therapeutic management was decided according to the symptomatology of the patient and the imagistic CT exam. We decided different ways of treatment for the two cases based on the CT scan, which has a major role in predicting intraoperative complications during endoscopic sinus surgery.

Infraorbital Nerve Dehiscence: The Anatomic Cause of Maxillary Sinus “Vacuum Headache”?

1992 ◽  
Vol 107 (1) ◽  
pp. 21-28 ◽  
Author(s):  
H. B. Whittet
Keyword(s):  
Surgical Treatment ◽  
Maxillary Sinus ◽  
Paranasal Sinuses ◽  
Facial Pain ◽  
Maxillary Sinusitis ◽  
Definitive Diagnosis ◽  
Infraorbital Nerve ◽  
Persistent Symptoms ◽  
Anatomic Variant ◽  
Anatomic Basis

Vacuum disorders of the paranasal sinuses are well described. Patients with facial pain in the distribution of the infraorbital nerve are often labelled as suffering from a “vacuum maxillary sinusitis” and empirically treated by intranasal antrostomy. A varie of mechanisms have been postulated for the production of symptoms in this condition, but all ignore the fact that the maxillary sinus is a relatively insensitive structure. This article introduces a dehiscence of the bony infraorbital nerve canal within the antrum as an anatomic variant and suggests that it may provide the anatomic basis for vacuum sinusitis in the presence of a small natural ostium. Definitive diagnosis is made by outpatient antroscopy, and surgical treatment takes the form of a middle or inferior meatal antrostomy. Persistent symptoms may benefit from an infraorbital neuropexy to provide added protection to the exposed nerve

scholarly journals FOREIGN BODY IN MAXILLARY SINUS WITH SKIN FISTULA – CLINICAL CASE

2019 ◽  
Vol 6 (3) ◽  
pp. 82-84 ◽  
Author(s):  
Daniela Vrînceanu ◽  
M. Dumitru ◽  
B. Banica ◽  
Adriana Nica
Keyword(s):  
Foreign Body ◽  
Ct Scan ◽  
Maxillary Sinus ◽  
Head Trauma ◽  
Clinical Case ◽  
Sinus Surgery ◽  
Facial Trauma ◽  
Legal Implications ◽  
Left Maxillary Sinus ◽  
Skin Fistula

We present the case of a 41 years old patient with poor social status and previous facial trauma with a sharp object (wood branch) 2 years ago. Although it was performed the extraction of the branch in a local ENT department, the patient developed a fistula in the left genian region with the presence of puss. Two months ago the patient undergoes another head trauma leading to neurosurgery. CT scan raises the suspicion of a foreign body in the left maxillary sinus. We performed left maxillary sinus surgery through Caldwell-Luc approach with extraction of the foreign body and closure of the fistula. Surgical healing was optimal within 10 days. We analyze the medico-legal implications of such cases.

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