Anatomic variations of surgical importance in ethmoid labyrinth and sphenoid sinus. A study of radiological anatomy

1992 ◽  
Vol 14 (1) ◽  
pp. 65-70 ◽  
Author(s):  
F Meloni ◽  
R Mini ◽  
S Rovasio ◽  
F Stomeo ◽  
G. P. Teatini
Keyword(s):  
Sphenoid Sinus ◽  
Anatomic Variations ◽  
Radiological Anatomy ◽  
Ethmoid Labyrinth

Hemangiopericytoma of the Sphenoid Sinus

1981 ◽  
Vol 89 (5) ◽  
pp. 713-716 ◽  
Author(s):  
Charles P. Kimmelman
Keyword(s):  
Radiation Therapy ◽  
Sphenoid Sinus ◽  
Vascular Tumor ◽  
External Beam Radiation ◽  
Orbital Apex ◽  
Tumor Nodule ◽  
Beam Radiation ◽  
The Right ◽  
Sinus Ostium ◽  
Ethmoid Labyrinth

A 51-year-old woman complained of intermittent nasal obstruction and rhinorrhea. Sinus roentgenograms and polytomograms revealed a small mucocele of the right sphenoid sinus. There was no encroachment of the orbital apex or intracranial contents. The mucocele was marsupialized via an external ethmoidectomy, and the scant tissue present inside the sinus was examined histologically. The pathologic diagnosis was hemangiopericytoma. The small tumor had apparently originated at the sinus ostium, thus creating the mucocele. Several months postoperatively, a small, vascular tumor nodule was noted in the incision. No recurrence was evident intranasally. A course of 5,040 rads of external beam radiation therapy was given to the right ethmoid labyrinth and right sphenoid. Since completing her radiation therapy, there has been no recurrence. This case is of interest because the tumor occurred as a mucocele of the sphenoid sinus.

Anatomic Sphenoid Cell Variants: Introduction of the Retrosphenoid Cell and Relevance in the Presentation and Management of Sinus Disease

2019 ◽  
Vol 34 (2) ◽  
pp. 170-175
Author(s):  
Anali Dadgostar ◽  
Aneela Hashmi ◽  
Judy Fan ◽  
Amin R. Javer
Keyword(s):  
Sphenoid Sinus ◽  
Internal Carotid ◽  
Treatment Strategies ◽  
Ct Scans ◽  
Preoperative Imaging ◽  
Surgical Approaches ◽  
Anatomic Variations ◽  
Sinus Disease ◽  
Anatomic Variants ◽  
Air Cells

Background Despite the well-appreciated variability in sphenoid sinus anatomy, there are no documented cases of retrosphenoid cells in the literature to date. Objective This study defines and determines the prevalence of retrosphenoid cells as identified on computed tomography (CT) imaging and intraoperative endoscopy and reviews the prevalence of other related anatomical variants of the sphenoid sinus. Methods Retrospective study of 300 random noncontrast sinus CT scans of patients with chronic rhinosinusitis presenting to a tertiary rhinology center. All identifiable anatomic variations and any presence of retrosphenoid cells and their pneumatization patterns were recorded. The prevalence of various anatomic variations of the sphenoid sinus was also calculated. Results A total of 300 sinus CT scans were included in the study. Protrusion of both the internal carotid artery (42.6%) and optic nerve (19.7%) into the sinus was more prevalent than the dehiscence of either one. A retrosphenoid cell was identified in 2% of CT scans. Other anatomic variants were less prevalent. Conclusion Meticulous review of preoperative imaging is key in identifying rare and complex sphenoid cell variations in planning surgical approaches and potential treatment strategies for the unusually pneumatized sphenoid air cells. Various manifestations of sinus disease can be localized to this area, and suspicion of a retrosphenoid cell should be raised in patients presenting with recalcitrant headache.

scholarly journals Assessment of sphenoid sinus related anatomic variations with computed tomography

2017 ◽  
Vol 27 ◽  
Author(s):  
Figen Tunali Turkdogan ◽  
Kenan Ahmet Turkdogan ◽  
Murat Dogan ◽  
Mehmet Haydar Atalar
Keyword(s):  
Computed Tomography ◽  
Sphenoid Sinus ◽  
Anatomic Variations

scholarly journals Anatomic Variations of Sphenoid Sinus Pneumatization in a Sample of Turkish Population: MRI Study

2014 ◽  
Vol 32 (4) ◽  
pp. 1140-1143 ◽  
Author(s):  
Ozdemir Sevinc ◽  
Merih Is ◽  
Cagatay Barut ◽  
Aliriza Erdogan
Keyword(s):  
Sphenoid Sinus ◽  
Turkish Population ◽  
Anatomic Variations ◽  
Mri Study

scholarly journals Anatomic Variations of the Sphenoid Sinus and Their Impact on Trans-sphenoid Pituitary Surgery

Skull Base ◽  
2008 ◽  
Vol 18 (1) ◽  
pp. 009-015 ◽  
Author(s):  
Ossama Hamid ◽  
Lobna El Fiky ◽  
Ossama Hassan ◽  
Ali Kotb ◽  
Sahar El Fiky
Keyword(s):  
Sphenoid Sinus ◽  
Pituitary Surgery ◽  
Anatomic Variations

Computed Tomography Analysis of Anatomic Variations of the Sphenoid Sinus

2012 ◽  
Vol 73 (S 01) ◽  
Author(s):  
Senja Tomovic ◽  
Norman Chan ◽  
Azadeh Esmaeili ◽  
James Liu ◽  
Jean Eloy
Keyword(s):  
Computed Tomography ◽  
Sphenoid Sinus ◽  
Anatomic Variations ◽  
Tomography Analysis

Variations of the ethmoid labyrinth and sphenoid sinus and CT imaging

1993 ◽  
Vol 250 (4) ◽  
pp. 209-212 ◽  
Author(s):  
J. Krmpotić-Nemanić ◽  
I. Vinter ◽  
J. Hat ◽  
D. Jalšovec
Keyword(s):  
Sphenoid Sinus ◽  
Ct Imaging ◽  
Ethmoid Labyrinth

Risky anatomic variations of sphenoid sinus for surgery

2006 ◽  
Vol 28 (2) ◽  
pp. 195-201 ◽  
Author(s):  
Birsen Unal ◽  
Gulsah Bademci ◽  
Yasemin K. Bilgili ◽  
Funda Batay ◽  
Emel Avci
Keyword(s):  
Sphenoid Sinus ◽  
Anatomic Variations

scholarly journals VARIATIONS OF SURGICALANATOMY IN AND AROUND SPHENOID SINUS: A COMPUTED TOMOGRAPHIC STUDY

2020 ◽  
pp. 52-55
Author(s):  
Debasish Ghosh ◽  
Shyama Bandopadhyay ◽  
Archana Singh ◽  
Soutrik Kumar ◽  
Arunabha Sengupta ◽  
...  
Keyword(s):  
Optic Nerve ◽  
Sphenoid Sinus ◽  
Neck Surgery ◽  
Three Dimensions ◽  
Preoperative Imaging ◽  
Chi Square ◽  
Radiological Anatomy ◽  
Computed Tomographic ◽  
Chi Square Test ◽  
The Right

Radiological anatomy is evaluated in three dimensions for preoperative and paroperative sur-gical planning, which helps the surgeon to identify his or her limits of dissection during sur-gery and avoid complications. Patients attending OPD at Institute of Otorhinolaryngology and Head & Neck Surgery, Kol-kata, India with features of sinonasal disease were advised CT scan depending upon the symptoms and course of the disease. 100 study subjects (200 sides) were selected during the study period between 01/01/2019 to 30/06/2020. Septa related directly related to ICA in 31%(n=31) cases of whom 12 patients (12%), 8 pa-tients (8%) and 11 patients (11%) had septa related to right ICA, left ICA and bilaterally ICA respectively. Septa attachment to optic nerve is seen in 27%(n=27) patients, of whom 10 patients (10%), 11 patients (11%) and 6 patients (6%) had attachment related to right optic nerve, left optic nerve and both optic nerves, respectively. On the right side ICA protrusion and pneumatization of ACP were both present in 8(8%) patients and on the left side in 7(7%) patients. Chi-Square test indicated a statistically significant association (P < 0.001). Pneumatized ACP and ON protrusion consistently en-countered on the right and left side in 7 patients (7%) and 8 patients (8%) respectively. Chi-Square test indicated a significant association between ACP pneumatization and ON protru-sion (P<0.001). This resolution helped in better demonstration of complicated sphenoid sinus anatomy well. Hence, we support 1 mm triplaner CT Scans for preoperative imaging assessment for all sinus surgeries.

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