scholarly journals Arrested Pneumatization of the Sphenoid Sinus in the Skull Base

2021 ◽  
Vol 9 ◽  
Author(s):  
Seong-Hyun Park ◽  
Jeong-Hyun Hwang
Keyword(s):  
Skull Base ◽  
Sphenoid Sinus

Ossifying fibromyxoid tumour of the sphenoid sinus

2009 ◽  
Vol 124 (4) ◽  
pp. 437-440
Author(s):  
S D Shetty ◽  
R J Salib ◽  
S B Nair ◽  
N Mathad ◽  
J Theaker
Keyword(s):  
Skull Base ◽  
Sphenoid Sinus ◽  
Neoplastic Disease ◽  
Clinical Effects ◽  
Soft Tissue Neoplasm ◽  
Transnasal Approach ◽  
Fibrous Stroma ◽  
Neuroectodermal Origin ◽  
Endoscopic Transnasal Approach

AbstractIntroduction:Ossifying fibromyxoid tumour is a recently described, rare but morphologically distinctive soft tissue neoplasm characterised by a combination of myxoid and/or fibrous stroma with areas of ossification. Although most authors postulate a neuroectodermal origin for this peculiar tumour, there is no agreement in the literature regarding its histopathogenesis. To our knowledge, this is the first reported case of ossifying fibromyxoid tumour involving the sphenoid sinus.Histological findings:Tumour of low cell density, composed of small, spindle-shaped or stellate cells with small, irregular nuclei set in a fibromyxoid stroma.Management:Following discussion at the skull base multidisciplinary team meeting, a combined surgical team including an otorhinolaryngologist and a neurosurgeon carried out resection of the lesion, using an endoscopic transnasal approach, followed by reconstruction of the defect.Conclusions:An awareness of the distinctive histopathological features of ossifying fibromyxoid tumour, and of its clinical effects, is crucial to establishing a definitive diagnosis and thereby instituting appropriate management. This case report also reinforces the evolving role of the endoscopic transnasal approach in the management of inflammatory and neoplastic disease involving the skull base. This is increasingly being made possible by close collaboration between multiple surgical specialties, including otorhinolaryngology and neurosurgery.

scholarly journals Endoscopic Endonasal Partial Middle Turbinectomy Approach: Adaptability of the Procedure in a Cadaveric Study and in Surgery for Different Sphenoid Sinus and Skull Base Lesions

Skull Base ◽  
2006 ◽  
Vol 16 (01) ◽  
pp. 001-013 ◽  
Author(s):  
Omar A El-Banhawy ◽  
Abd El-Hafiz Shehab El-Dien ◽  
Ahmed Said Zolfakar ◽  
Ahmed N Halaka ◽  
Heshmat Ayad
Keyword(s):  
Skull Base ◽  
Sphenoid Sinus ◽  
Cadaveric Study ◽  
Endoscopic Endonasal ◽  
Skull Base Lesions

Surgical nuances for the endoscopic endonasal transpterygoid approach to lateral sphenoid sinus encephaloceles

2012 ◽  
Vol 32 (6) ◽  
pp. E5 ◽  
Author(s):  
Richard F. Schmidt ◽  
Osamah J. Choudhry ◽  
Joseph Raviv ◽  
Soly Baredes ◽  
Roy R. Casiano ◽  
...  
Keyword(s):  
Skull Base ◽  
Sphenoid Sinus ◽  
Skull Base Surgery ◽  
Surgical Anatomy ◽  
Endoscopic Endonasal ◽  
Csf Rhinorrhea ◽  
Lateral Recess ◽  
Sternberg Canal ◽  
Deep Location ◽  
Repair Techniques

Lateral sphenoid encephaloceles of the Sternberg canal are rare entities and usually present with spontaneous CSF rhinorrhea. Traditionally, these were treated via transcranial approaches, which can be challenging given the deep location of these lesions. However, with advancements in endoscopic skull base surgery, including improved surgical exposures, angled endoscopes and instruments, and novel repair techniques, these encephaloceles can be resected and successfully repaired with purely endoscopic endonasal approaches. In this report, the authors review the endoscopic endonasal transpterygoid approach to the lateral recess of the sphenoid sinus for repair of temporal lobe encephaloceles, including an overview of the surgical anatomy from an endoscopic perspective, and describe the technical operative nuances and surgical pearls for these cases. The authors also present 4 new cases of lateral sphenoid recess encephaloceles that were successfully treated using this approach.

scholarly journals Preauricular Transzygomatic Approach for Infratemporal Fossa and Surrounding Skull Base Lesion: An Institutional Experience

2018 ◽  
Vol 01 (02) ◽  
pp. 094-099
Author(s):  
Rajat Jain ◽  
Amit Keshri ◽  
Ravi Manogaran ◽  
Raj Kumar ◽  
Pearly Keeranghat
Keyword(s):  
Skull Base ◽  
Sphenoid Sinus ◽  
Malignant Tumors ◽  
Postoperative Radiotherapy ◽  
Infratemporal Fossa ◽  
Benign Tumors ◽  
Critical Areas ◽  
Institutional Experience ◽  
Base Lesion ◽  
Better Than

Abstract Background Preauricular transzygomatic surgical approach (PTZA) can be used to approach and resect tumors of infratemporal fossa (ITF) and surrounding skull base lesion. Various modifications in this approach can be used to approach various critical areas such as cavernous sinus, sphenoid sinus. Materials and Methods Clinical charts were reviewed to determine the association among pathological variables, surgical procedures, and outcomes. Results Three out of seven were malignant tumors and required pterional craniotomy and postoperative radiotherapy. 4 out of 7 were benign tumors and required craniofacial osteotomies. Conclusion PTZA is a versatile approach for tumor of ITF with or without intracranial extradural extension and cosmetically better than other approaches. This approach is better suited for lateral ITF tumors that are difficult to access through endoscopic approaches.

Giant cell tumour of the sphenoid sinus: An unusual skull base tumour

1991 ◽  
Vol 105 (10) ◽  
pp. 855-857 ◽  
Author(s):  
David Uttley ◽  
Daniel J. Archer
Keyword(s):  
Skull Base ◽  
Giant Cell ◽  
Sphenoid Sinus ◽  
Giant Cell Tumour ◽  
Cell Tumour ◽  
Surgical Strategy ◽  
Sphenoid Bone ◽  
Current Management ◽  
Skull Base Tumour ◽  
Giant Cell Tumours

AbstractAn unusual skull base tumour is presented. Intraoperative smears made the diagnosis and dictated a change in surgical strategy. Giant-cell tumours of the sphenoid bone are discussed, together with current management.

Endoscopic Endonasal Transethmoidal Transcribriform Transfovea Ethmoidalis Approach to the Anterior Cranial Fossa and Skull Base

Neurosurgery ◽  
2010 ◽  
Vol 66 (5) ◽  
pp. 883-892 ◽  
Author(s):  
Jeffrey P. Greenfield ◽  
Vijay K. Anand ◽  
Ashutosh Kacker ◽  
Michael J. Seibert ◽  
Ameet Singh ◽  
...  
Keyword(s):  
Cerebrospinal Fluid ◽  
Skull Base ◽  
Sphenoid Sinus ◽  
Malignant Tumors ◽  
Anterior Skull Base ◽  
Anterior Cranial Fossa ◽  
Csf Leak ◽  
Endoscopic Endonasal ◽  
Lumbar Drainage ◽  
Cranial Fossa

Abstract OBJECTIVE The anterior skull base, in front of the sphenoid sinus, can be approached using a variety of techniques including extended subfrontal, transfacial, and craniofacial approaches. These methods include risks of brain retraction, contusion, cerebrospinal fluid leak, meningitis, and cosmetic deformity. An alternate and more direct approach is the endonasal, transethmoidal, transcribriform, transfovea ethmoidalis approach. METHODS An endoscopic, endonasal approach was used to treat a variety of conditions of the anterior skull base arising in front of the sphenoid sinus and between the orbits in a series of 44 patients. A prospective database was used to detail the corridor of approach, closure technique, use of intraoperative lumbar drainage, operative time, and postoperative complications. Extent of resection was determined by a radiologist using volumetric analysis. RESULTS Pathology included meningo/encephaloceles (19), benign tumors (14), malignant tumors (9), and infectious lesions (2). Lumbar drains were placed intraoperatively in 20 patients. The CSF leak rate was 6.8% for the whole series and 9% for intradural cases. Leaks were effectively managed with lumbar drainage. Early reoperation for cerebrospinal fluid (CSF) leak occurred in 1 patient (2.2%). There were no intracranial infections. Greater than 98% resection was achieved in 12 of 14 benign and 5 of 9 malignant tumors. CONCLUSION The endoscopic, endonasal, transethmoidal, transcribriform, transfovea ethmoidalis approach is versatile and suitable for managing a variety of pathological entities. This minimal access surgery is a feasible alternative to transcranial, transfacial, or combined craniofacial approaches to the anterior skull base and anterior cranial fossa in front of the sphenoid sinus. The risk of CSF leak and infection are reasonably low and decrease with experience. Longer follow-up and larger series of patients will be required to validate the long-term efficacy of this minimally invasive approach.

SPECIFIC ASPECTS OF PLASTIC RECONSTRUCTION OF SKULL BASE DEFECTS WITH SPHENOID SINUS LOCALIZATION

2016 ◽  
Vol 81 (2) ◽  
pp. 21-24 ◽  
Author(s):  
S. S. Gaidukov ◽  
◽  
A. N. Naumenko ◽  
N. N. Naumenko ◽  
D. A. Gulyaev ◽  
...  
Keyword(s):  
Skull Base ◽  
Sphenoid Sinus ◽  
Plastic Reconstruction ◽  
Skull Base Defects

scholarly journals Anatomical variations of intra-sphenoid sinus septations in a sample of Kashmiri population: a non-contrast computed tomography study

2019 ◽  
Vol 7 (5) ◽  
pp. 1445
Author(s):  
Abdul Haseeb Wani ◽  
Yassar Shiekh ◽  
Arshed Hussain Parry ◽  
Zahid Qayoom
Keyword(s):  
Computed Tomography ◽  
Skull Base ◽  
Sphenoid Sinus ◽  
Anatomical Variations ◽  
Carotid Canal ◽  
Preoperative Ct ◽  
Kashmiri Population ◽  
Glandular Structures ◽  
The Right ◽  
Age Range

Background: The sphenoid sinus shows multitude of variations in pneumatization, size and pattern of septations leading to differences in its segmentation. Pre-operative knowledge of their attachment especially to posterolateral bony walls covering vital structures is of utmost importance for a safe trans-sphenoidal approach for various surgical procedures involving skull base. Non-contrast computed tomography (NCCT) with its ability to provide multiplanar reformations (MPR) with sharp algorithms is now a reference standard for visualization of these intra-sphenoid sinus septations preoperatively. The objective of this study was to determine the number and attachment of intra-sphenoid sinus septations in a Kashmiri population sample.Methods: NCCT head images of 591 patients in the age range of 16 to 75 years were analyzed retrospectively. Individuals with age less than 16 years, previous surgery involving skull base/sphenoid sinus, trauma causing hem sinus/fractures around skull base or having space occupying lesions around skull base/sphenoid sinus were excluded from the study. On the CT workstation multi-planar coronal, sagittal and axial reconstructions were performed and subsequently examined.Results: The age range was 16 to 75 years with mean age of 43.56 years of which 453 (76.6%) were males and 138 (23.4%) were females. Single intra-sphenoid septation was the most common anatomic variant in present study (79.7%) being complete in 71.7% and partial or incomplete in 8% of the examined subjects. Double septa were found in 11% inpresent study and more than 2 septae in 3.4%. After sellar attachment (51%) the next most common site of attachment was to the carotid canal (29.5%) (23% to left ICA and 6.5% to the right ICA).Conclusions: Intricate knowledge about sphenoid sinus, its pneumatization and anatomical variations in intra-sphenoid sinus septations and its relationship with the surrounding vital structures is of utmost importance before performing any endoscopic/open surgery involving skull base via trans-sphenoidal approach. The present study shows that a significant percentage of septal attachment to the carotid canal makes main sphenoidal septum as not so reliable landmark for endoscopic procedures as used to be in the pre-imaging era. Thus, preoperative CT is mandatory to avoid injuries to para-sellar neurovascular and glandular structures.

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