Comparison of Endoscopic Endonasal Approach and Lateral Microsurgical Infratemporal Fossa Approach to the Jugular Foramen: An Anatomical Study

Author(s):  
Jianfeng Liu ◽  
Carlos D. Pinheiro-Neto ◽  
Dazhang Yang ◽  
Eric Wang ◽  
Paul A. Gardner ◽  
...  

Abstract Objective The jugular foramen is one of the most challenging surgical regions in skull base surgery. With the development of endoscopic techniques, the endoscopic endonasal approach (EEA) has been undertaken to treat some lesions in this area independently or combined with open approaches. The purpose of the current study is to describe the anatomical steps and landmarks for the EEA to the jugular foramen and to compare it with the degree of exposure obtained with the lateral infratemporal fossa approach. Materials and Methods A total of 15 osseous structures related to the jugular foramen were measured in 33 adult dry skulls. Three silicone-injected adult cadaveric heads (six sides) were dissected for EEA and three heads (six sides) were used for a lateral infratemporal fossa approach (Fisch type A). The jugular foramen was exposed, relevant landmarks were demonstrated, and the distances between relevant landmarks and the jugular foramen were obtained. High-quality pictures were obtained. Results The jugular foramen was accessed in all dissections by using either approach. Important anatomical landmarks for EEA include internal carotid artery (ICA), petroclival fissure, inferior petrosal sinus, jugular tubercle, and hypoglossal canal. The EEA exposed the anterior and medial parts of the jugular foramen, while the lateral infratemporal fossa approach (Fisch type A) exposed the lateral and posterior parts of the jugular foramen. With EEA, dissection and transposition of the facial nerve was avoided, but the upper parapharyngeal and paraclival ICA may need to be mobilized to adequately expose the jugular foramen. Conclusion The EEA to the jugular foramen is anatomically feasible but requires mobilization of the ICA to provide access to the anterior and medial aspects of the jugular foramen. The lateral infratemporal approach requires facial nerve transposition to provide access to the lateral and posterior parts of the jugular foramen. A deep understanding of the complex anatomy of this region is paramount for safe and effective surgery of the jugular foramen. Both techniques may be complementary considering the different regions of the jugular foramen accessed with each approach.

Skull Base ◽  
2007 ◽  
Vol 17 (S 2) ◽  
Author(s):  
Lee Zimmer ◽  
Aaron Brescia ◽  
Bharat Guthikonda ◽  
Jeffrey Keller ◽  
Philip Theodosopoulos

Neurosurgery ◽  
2003 ◽  
Vol 52 (2) ◽  
pp. 374-380 ◽  
Author(s):  
Alessandra Alfieri ◽  
Hae-Dong Jho ◽  
Raffaele Schettino ◽  
Manfred Tschabitscher

Abstract OBJECTIVE The pterygopalatine fossa is a relatively small anatomic region. Because of its rich vasculonervous contents and its connections with several intracranial and extracranial compartments, it is of particular surgical interest. Because of its deep localization and despite its small size, however, it can require extensive anatomic approaches, especially for invasive cranial base lesions. We performed a cadaveric study through a minimally invasive endoscopic endonasal approach to the pterygopalatine fossa. METHODS We studied 16 pterygopalatine fossae in eight adult cadaveric heads in which the arteries and veins were injected with latex. For visualization, we used rod-lens endoscopes, 4 mm in diameter and 18 cm in length, with 0-, 30-, 45-, and 70-degree lenses. An endonasal middle meatal transpalatine approach, an endonasal middle meatal transantral approach, and an endonasal inferior turbinectomy transantral approach were used. RESULTS The middle meatal transpalatine approach allows for medial exposure of the pterygopalatine fossa contents, the middle meatal transantral approach allows a lateral view, and the inferior turbinectomy transantral approach allows the widest view and room for surgical maneuvering in the medial and lateral compartments of the pterygopalatine fossa and the infratemporal fossa. CONCLUSION Our anatomic study shows that this approach can be considered a valid minimally invasive option to approach pterygopalatine fossa lesions.


2007 ◽  
Vol 106 (1) ◽  
pp. 157-163 ◽  
Author(s):  
Domenico Solari ◽  
Francesco Magro ◽  
Paolo Cappabianca ◽  
Luigi M. Cavallo ◽  
Amir Samii ◽  
...  

Object The pterygopalatine fossa is an area that lies deep within the skull base. The recent extensive use of the endoscopic endonasal approach has provided neurosurgeons with a method to reach various areas of the skull base through a less invasive approach than traditional transcranial or transfacial approaches. This study aims to provide neurosurgeons with new data concerning direct endoscopic measurements and precise anatomical topography features of the pterygopalatine fossa. Methods An anatomical dissection of six fixed cadaver heads (12 pterygopalatine fossae) was performed to analyze spatial relationships and distances between the most important neurovascular structures in this region, and to estimate the size of the endoscopic surgical field for operations in this area. The endoscopic endonasal approach offers direct access to the pterygopalatine fossa through its anteromedial walls. Conclusions Using an endoscopic endonasal approach makes it possible to identify all of the anatomical landmarks of the pterygopalatine fossa and almost all of the contiguous skull base areas.


2021 ◽  
Author(s):  
Chen Lin ◽  
Bo-An Chen ◽  
Shih-Ming Jung ◽  
Cheng-Chi Lee

Abstract Background Sarcomatoid hepatocellular carcinoma (SHC) is a relatively malignant tumor due to its recurrence and metastasis. Although metastatic SHC has been reported, skull base metastasis has not yet been documented. Case presentation: We herein report on a 51-year-old male with left throbbing headache and cranial nerve neuropathies. Magnetic resonance imaging revealed an extradural lesion of over 4 cm involving the jugular foramen, hypoglossal canal, clivus and the atlas. An endoscopic endonasal approach (EEA) was adopted for tissue biopsy and decompression, and the symptoms of the patient improved significantly after the surgery. Conclusions SHC invading the skull base is an extremely rare circumstance. For such extradural lesions, EEA is the most applicable and promising treatment approach.


2017 ◽  
Vol 13 (4) ◽  
pp. 482-491 ◽  
Author(s):  
Francisco Vaz-Guimaraes ◽  
Ana Carolina I. Nakassa ◽  
Paul A. Gardner ◽  
Eric W. Wang ◽  
Carl H. Snyderman ◽  
...  

Abstract BACKGROUND: Surgical exposure of the jugular foramen (JF) is challenging given its complex regional anatomy and proximity to critical neurovascular structures. OBJECTIVE: To describe the anatomical basis, surgical technique, and outcomes of a group of patients who underwent the endoscopic endonasal approach to the JF. METHODS: Five silicon-injected anatomical specimens were prepared for dissection. Additionally, a chart review was conducted through our patient database, searching for endonasal exposure of the JF. Demographic data, clinical presentation, pathological findings, extent of resection in the JF, and occurrence of complications were analyzed. RESULTS: The endonasal exposure of the JF requires 3 sequential steps: a transpterygoid, a “far-medial,” and an “extreme-medial” approach. Mobilization or transection of the cartilaginous portion of the eustachian tube (ET) is necessary. In the clinical series, cranial neuropathies were the presenting symptoms in 16 patients (89%). Eighteen tumors (10 chondrosarcomas, 7 chordomas, 1 adenocarcinoma) extended secondarily into the JF. Total tumor resection was achieved in 10 patients (56%), near total (≥90%) in 6 (33%), and subtotal (<90%) in 2 (11%). ET dysfunction (75% of cases), transient palatal numbness (17%), cerebrospinal fluid leakage (17%), and lower cranial nerve palsy (17%) were the most common postoperative complications. There were no carotid artery or jugular vein injuries. CONCLUSION: The endoscopic endonasal approach to the JF requires mobilization or transection of the cartilaginous portion of the ET. This maneuver provides a safe infrapetrosal surgical route to the JF. It may be considered a valid option, in well-selected cases, for resection of malignant and recurrent cranial base tumors.


2015 ◽  
Vol 76 (S 01) ◽  
Author(s):  
Satyan Sreenath ◽  
Benjamin McClintock ◽  
Benjamin Huang ◽  
Kibwei McKinney ◽  
Brian Thorp ◽  
...  

2013 ◽  
Vol 74 (S 01) ◽  
Author(s):  
Francisco A. Filho ◽  
Victor Alcocer ◽  
Milton Rastelli ◽  
Omar Ramirez ◽  
Juan Fernandez-Miranda ◽  
...  

2021 ◽  
pp. 014556132110002
Author(s):  
Jiangyu Yan ◽  
Fangfang Pan ◽  
Mengmeng Zhen ◽  
Yuan Ren ◽  
Wenjuan Hao ◽  
...  

Facial nerve schwannoma (FNS) is a benign, slow-growing schwannoma that originates from Schwann cells. Facial nerve schwannoma is the most common tumor of the facial nerve but rare and only accounts for 0.15% to 0.8% of intracranial neurinomas. It may be manifested as asymmetric hearing loss, facial palsy, and hemifacial spasm. A 56-year-old woman was transferred to our department, because of pain behind the right ear and spasm of the right lateral muscle for more than 2 years and pulsatile tinnitus for half a year. Based on the preoperative medical history, physical signs, and auxiliary examination, it was diagnosed with jugular foramen (JF) space-occupying lesion. We removed the tumor through the infratemporal fossa type A approach and found that the tumor originated from the facial nerve. After the tumor resection, sural nerve transplantation was performed. The patient demonstrated postoperative facial palsy (House-Brackman grade VI) and was smoothly discharged after good recovery. Facial nerve schwannoma rarely invades the JF, and the most common tumor in the JF is the glomus jugular tumor, followed by the posterior cranial schwannoma. They have common symptoms, making it difficult to obtain a correct diagnosis. Clinical data, medical history, and auxiliary examinations should be carefully analyzed to avoid misdiagnosis or mistreatment. Infratemporal fossa type A approach is an effective method for treating FNS of JF.


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