Anatomic Study with Computed Tomography of the Lateral Wall of the Sphenoid Sinus of Patients Assisted in Specialized Service of Otorhinolaryngology in Blumenau / SC

AbstractObjective:We report the rare case of a 55-year-old woman with an asymptomatic left sphenoid sinus pseudomeningocele mimicking a mucocele.Case report:A 55-year-old woman was found to have an incidental mass in the left sphenoid sinus on computed tomography. Magnetic resonance imaging confirmed the presence of a mucocele. A left endoscopic sphenoidotomy was performed to drain the mucocele. Despite an anatomical puncture through a stenosed sphenoid ostium, alarmingly, the opening leaked cerebrospinal fluid. A dehiscent lateral wall was identified with a dural opening communicating with the sphenoid sinus. This was immediately repaired with a free nasal septal mucosal graft. Six months post-operatively, the patient remained free from cerebrospinal fluid leakage.Conclusion:Pseudomeningoceles are extremely rare in the absence of trauma or iatrogenic injury. Surgeons should be alert to their presence as they can mimic a unilateral mucocele or nasal polyp. Endoscopic management lends itself to a single-stage repair.

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Correlation between uniocular deviation and duction changes following different decompression surgeries in thyroid eye disease

BMC Ophthalmology ◽

10.1186/s12886-021-01892-9 ◽

2021 ◽

Vol 21 (1) ◽

Author(s):

Jie Guo ◽

Xiaofeng Li ◽

Ruiqi Ma ◽

Jiang Qian

Keyword(s):

Computed Tomography ◽

Lateral Wall ◽

Contractile Force ◽

Thyroid Eye Disease ◽

Eye Disease ◽

Decompression Surgery ◽

Inferior Wall ◽

Orbital Decompression ◽

Significant Difference ◽

Ocular Deviation

Abstract Background Postoperative ocular imbalance is an important problem for orbital decompression surgery in thyroid eye disease (TED). The aim of this study was to evaluate the changes in unilateral ocular deviation and duction following orbital decompression and discuss the biomechanics of ocular imbalance. Methods Fifty-four TED patients who underwent unilateral orbital decompression were included. Fifteen patients underwent 1-wall (deep lateral wall) decompression, 18 patients underwent 2-wall (deep lateral and medial wall) decompression and 21 patients underwent 3-wall (deep lateral, medial and inferior wall) decompression. Objective and subjective deviation of the operated eyes were evaluated using the prism test and synoptophore, respectively. Ocular ductions were measured using Hirschberg’s method. The diameters of the extraocular rectus were measured by computed tomography. Results Ocular deviation and duction showed no significant difference after 1-wall decompression (p = 0.25–0.89). Esotropia increased after 2-wall decompression (p = 0.001–0.02), and hypotropia increased after 3-wall decompression (p = 0.02). Adduction increased but abduction decreased following 2-wall and 3-wall decompression (p < 0.05). Infraduction increased following 3-wall decompression (p < 0.001). Additionally, the increase in esotropia was significantly correlated with the increase in adduction and with the decrease in abduction (r = 0.37–0.63, p < 0.05). There were significant correlations between the diameter of the medial rectus and the increase in esotropia, the increase in adduction and the decrease in abduction postoperatively (r = 0.35–0.48, p < 0.05). Conclusions The changes in ocular deviation and duction were different after 1-wall, 2-wall and 3-wall orbital decompression. The increased contractile force of the rectus may be an important reason for strabismus changes after orbital decompression surgery.

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Computed tomography of the brain and associated structures of the one-humped camel (Camelus dromedarius): an anatomic study

Journal of Applied Animal Research ◽

10.1080/09712119.2014.963092 ◽

2014 ◽

Vol 43 (2) ◽

pp. 218-223 ◽

Cited By ~ 1

Author(s):

Diego Blanco ◽

José M. Vázquez ◽

Miguel A. Rivero ◽

Juan A. Corbera ◽

Alberto Arencibia

Keyword(s):

Computed Tomography ◽

Camelus Dromedarius ◽

Anatomic Study ◽

The One ◽

The Brain

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Three-Dimensional Reconstruction of Ultrafast 16-Slice Computed Tomography Images and CT Angiography versus Conventional Coronary Angiography at One Year in Multivessel Coronary Artery Bypass Surgery

Innovations Technology and Techniques in Cardiothoracic and Vascular Surgery ◽

10.1097/01243895-200500120-00008 ◽

2005 ◽

Vol 1 (2) ◽

pp. 92-95 ◽

Cited By ~ 4

Author(s):

Rajneesh Malhotra ◽

Manisha Mishra ◽

Poonam Khurana ◽

Monika Aggarwal ◽

Yugal Mishra ◽

...

Keyword(s):

Computed Tomography ◽

Coronary Artery ◽

Coronary Angiography ◽

Artery Bypass ◽

Lateral Wall ◽

Conventional Coronary Angiography ◽

Inferior Wall ◽

Bypass Grafts ◽

Dimensional Reconstruction ◽

Msct Angiography

Background The aim of this study was to evaluate and compare the postoperative graft patency assessment by multislice spiral computed tomography (MSCT) scan and conventional coronary angiography (CCA) in coronary artery bypass grafting (CABG) patients 1 year after surgery. Methods Sixty-nine patients who underwent isolated CABG at least 1 year before the study, were subjected to both MSCT angiography with cardiac gating and CCA. The results were evaluated and compared. Results There were 209 grafts in 69 patients. All grafts were evaluated by both MSCT angiography and CCA. Seventy-eight grafts were on the anterior wall, 83 on the lateral wall and 48 on the inferior wall of the heart. On MSCT angiography, all left internal mammary arteries were visualized with 3-dimensional reconstruction and found to be patent. Of 209 grafts, 11 grafts (5.26%) were blocked, 6 grafts on the lateral wall and 5 on the inferior wall. All patent grafts were correctly evaluated by MSCT angiography (specificity 100%). However, 2 grafts that were found to be patent on MSCT angiography were blocked on CCA (MSCT sensitivity 81.8%). Conclusions Postoperative evaluation of coronary bypass grafts is possible with very good resolution by MSCT angiography. This method allows evaluation of the bypass grafts and the quality of anastomosis with a noninvasive method that is comparable with CCA.

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Quantitative Computer-Aided Computed Tomography Analysis of Sphenoid Sinus Anatomical Relationships

American Journal of Rhinology ◽

10.1177/194589240401800308 ◽

2004 ◽

Vol 18 (3) ◽

pp. 173-178 ◽

Cited By ~ 22

Author(s):

Martin J. Citardi ◽

Ryan P. Gallivan ◽

Pete S. Batra ◽

Calvin R. Maurer ◽

Torsten Rohlfing ◽

...

Keyword(s):

Computed Tomography ◽

Sphenoid Sinus ◽

Computer Aided ◽

Tomography Analysis

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Post-mortem X-ray computed tomography (PMCT) identification using ante-mortem CT-scan of the sphenoid sinus

Journal of Neuroradiology ◽

10.1016/j.neurad.2018.08.003 ◽

2019 ◽

Vol 46 (4) ◽

pp. 248-255 ◽

Cited By ~ 7

Author(s):

Lucile Deloire ◽

Idris Diallo ◽

Romain Cadieu ◽

Mathieu Auffret ◽

Zarrin Alavi ◽

...

Keyword(s):

Computed Tomography ◽

Ct Scan ◽

Sphenoid Sinus ◽

Post Mortem ◽

X Ray ◽

X Ray Computed

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Ventricular lateral wall rupture after myocardial infarction detected by means of multislice computed tomography

Journal of Thoracic and Cardiovascular Surgery ◽

10.1016/j.jtcvs.2005.08.044 ◽

2006 ◽

Vol 131 (1) ◽

pp. 226-227 ◽

Cited By ~ 2

Author(s):

Stefan Klotz ◽

Eva M. Fallenberg ◽

Andreas Hoffmeier ◽

Tonny D.T. Tjan ◽

Hans H. Scheld

Keyword(s):

Myocardial Infarction ◽

Computed Tomography ◽

Multislice Computed Tomography ◽

Lateral Wall

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Computed Tomography Anatomy of the Optic Canal

Otolaryngology ◽

10.1016/j.otohns.2008.05.239 ◽

2008 ◽

Vol 139 (2_suppl) ◽

pp. P74-P74 ◽

Cited By ~ 4

Author(s):

Catherine K Hart ◽

Lee A Zimmer

Keyword(s):

Computed Tomography ◽

Optic Nerve ◽

Sphenoid Sinus ◽

Optic Canal ◽

Canal Wall ◽

Nerve Decompression ◽

Computed Tomography Images ◽

Optic Nerve Decompression ◽

Wide Range ◽

Potential Area

Objective (1) Analyze the radiographic anatomy of the optic canal in relationship to the sphenoid sinus. (2) Understand the role variation in optic canal anatomy may have in the variability of outcomes in optic nerve decompression. Methods Fine cut computed tomography images of the sinuses were obtained with an IRB waiver. Optic canal dimensions were measured on sinus computed tomography images of 96 patients. 191 optic canals were analyzed (111 females, 80 males). Student T-test calculations were performed for statistical analysis on computer software. Results The average medial canal wall length was 1.48 centimeters (range 0.7–2.3). The length in males was 1.61 centimeters (1.1–2.3) as compared to 1.39 centimeters (0.7–2.0) in females (p=8.0–7). The average degree of exposure of the optic canal exposed to the sphenoid sinus was 101.3 degrees (56–176). The degree of exposure was 105.6 in males versus 98.2 in females (p=.01). The potential area of canal exposed to the sphenoid sinus was 0.66 centimeters squared or 28% of the total surface area. The potential area exposed to the sphenoid sinus in males was 0.76cm2 (28%) and 0.58 centimeters squared (27%) in females. Conclusions A wide range in medial canal wall length and exposure of the bony optic canal to the sphenoid sinus exists on CT images. The variation in medial canal wall length and in optic canal exposure to the sphenoid sinus may contribute to the variability in success rates of endoscopic optic nerve decompression for optic neuropathy.

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A rare combination of polyp, inverted papilloma and squamous cell carcinoma of sphenoid sinus

International Journal of Otorhinolaryngology and Head and Neck Surgery ◽

10.18203/issn.2454-5929.ijohns20213302 ◽

2021 ◽

Vol 7 (9) ◽

pp. 1565

Author(s):

Nitish Baisakhiya ◽

Anusha Shukla ◽

Kartikey Pande

Keyword(s):

Squamous Cell Carcinoma ◽

Cell Carcinoma ◽

Squamous Cell ◽

Sphenoid Sinus ◽

Rare Case ◽

Lateral Wall ◽

Inverted Papilloma ◽

Back Ground ◽

Rare Site ◽

Malignant Changes

<p class="abstract">Inverted papilloma (IP) is a tumor most commonly originates from lateral wall of nose and benign in nature. Sphenoid sinus is a rare site of origin and involvement. Malignant changes are the rare possibility in the IP. In this case report we reported a rare case of squamous cell carcinoma in back ground of inverted papilloma of sphenoid sinus.</p>

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Sphenoid sinus mucocele: 10 cases and literature review

The Journal of Laryngology & Otology ◽

10.1017/s0022215109991551 ◽

2009 ◽

Vol 124 (1) ◽

pp. 44-47 ◽

Cited By ~ 36

Author(s):

S R Soon ◽

C M Lim ◽

H Singh ◽

D S Sethi

Keyword(s):

Magnetic Resonance Imaging ◽

Computed Tomography ◽

Magnetic Resonance ◽

Endoscopic Sinus Surgery ◽

Sphenoid Sinus ◽

Sinus Surgery ◽

Nasal Discharge ◽

Resonance Imaging ◽

Presenting Symptoms ◽

Singapore General Hospital

AbstractIntroduction:Sphenoid sinus mucoceles represent only 1–2 per cent of all paranasal sinus mucoceles. Patients may present with a myriad of symptoms. Pre-operative investigations include nasoendoscopy, computed tomography and/or magnetic resonance imaging. Treatment is by endoscopic sinus surgery.Methodology:A retrospective review of the archives of the Singapore General Hospital otolaryngology department (1999–2006) identified 10 cases of sphenoid sinus mucocele. Patient demographics, presenting symptoms, investigations and treatment were evaluated.Results:The 10 patients identified (three women and seven men) had a mean age of 54.5 years (range 24–70 years). Thirty per cent of patients had a history of nasopharyngeal carcinoma treated with radiotherapy. Presenting symptoms, in order of decreasing frequency, were: ocular symptoms (50 per cent), headaches (30 per cent), nasal discharge (30 per cent) and facial pain (10 per cent). All patients underwent pre-operative computed tomography or magnetic resonance imaging. Twenty per cent of patients had evidence of intracranial involvement on imaging. All patients underwent uncomplicated transnasal sphenoidotomy and drainage of the mucocele. There was no clinical or radiological evidence of recurrence at a mean follow up of 29 months (range 4–90 months).Conclusion:Sphenoid sinus mucocele is a rare condition. In this study, radiation to the head and neck appeared to be a predisposing factor, and eye symptoms were the commonest presentation. Endoscopic sinus surgery is a safe and effective treatment modality.

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