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Infratemporal fossa

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https://www.readbyqxmd.com/read/29775148/the-pterygoclival-ligament-a-novel-landmark-for-localization-of-the-internal-carotid-artery-during-the-endoscopic-endonasal-approach
#1
Ali Tayebi Meybodi, Andrew S Little, Vera Vigo, Arnau Benet, Sofia Kakaizada, Michael T Lawton
OBJECTIVE The transpterygoid extension of the endoscopic endonasal approach provides exposure of the petrous apex, Meckel's cave, paraclival area, and the infratemporal fossa. Safe and efficient localization of the lacerum segment of the internal carotid artery (ICA) is a crucial part of such exposure. The aim of this study is to introduce a novel landmark for localization of the lacerum ICA. METHODS Ten cadaveric heads were prepared for transnasal endoscopic dissection. The floor of the sphenoid sinus was drilled to expose an extension of the pharyngobasilar fascia between the sphenoid floor and the pterygoid process (the pterygoclival ligament)...
May 18, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29765826/rates-and-locations-of-regional-metastases-in-sinonasal-malignancies-the-mayo-clinic-experience
#2
Brandon W Peck, Kathryn M Van Abel, Eric J Moore, Daniel L Price
Objectives  The objective of this study was to identify factors that may influence the rate and location of regional metastasis in sinonasal malignancies (SNMs). Design  This is a retrospective review. Setting  This study was set at the single-institution tertiary referral center. Participants  A total of 299 patients were treated for SNMs from 1994 to 2014. Main Outcome Measures  The main outcome measures were incidence and distribution of regional metastases. Results  Several histologic subtypes were treated, with squamous cell carcinoma (28...
June 2018: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/29765822/minimally-invasive-surgery-for-resection-of-parapharyngeal-space-tumors
#3
Irit Duek, Gill E Sviri, Salem Billan, Ziv Gil
Background  Surgical removal of parapharyngeal space tumors (PPST) poses challenges due to the complex anatomy of the region. PPSTs are routinely resected by a transcervical approach using blind finger dissection. Large PPSTs or those located high at the skull base, often require transmandibular or infratemporal fossa approaches, associated with considerable morbidity. Objective  Here, we describe an approach for PPST removal that comprises transcervical endoscopic, with or without transoral robotic technique...
June 2018: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/29757561/-retrospective-analysis-of-188-cases-of-parapharyngeal-space-tumors
#4
Lei Tao, Xiao Ling Shi, Xiao Ming Li, Hai Tao Wu, Xiao Ling Chen, Cai Li, Yan Shen, Chun Sheng Wei, D H Wang, Liang Zhou
Objective: To explore the diagnosis,treatment,surgical approach and prognosis of parapharyngeal space tumors. Method: The clinical data of 188 patients with parapharyngeal space tumor who were treated from January 2007 to December 2016 were analyzed retrospectively.All patients underwent imaging examination before operation.Surgical approach was as follows:transcervical approach applied in 159 cases,endoscopic-assisted transnasal approach in 9 cases,transcervical-transmandibular approach in 8 cases,transcervical-transparotid approach in 8 cases,transoral approach in 7 cases,and infratemporal fossa approach in 4 case...
January 20, 2018: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29741741/microsurgical-resection-of-glomus-jugulare-tumors-with-facial-nerve-reconstruction-3-dimensional-operative-video
#5
Duarte N C Cândido, Jean Gonçalves de Oliveira, Luis A B Borba
Paragangliomas are tumors originating from the paraganglionic system (autonomic nervous system), mostly found at the region around the jugular bulb, for which reason they are also termed glomus jugulare tumors (GJT). Although these lesions appear to be histologically benign, clinically they present with great morbidity, especially due to invasion of nearby structures such as the lower cranial nerves. These are challenging tumors, as they need complex approaches and great knowledge of the skull base. We present the case of a 31-year-old woman, operated by the senior author, with a 1-year history of tinnitus, vertigo, and progressive hearing loss, that evolved with facial nerve palsy (House-Brackmann IV) 2 months before surgery...
May 8, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29729008/analysis-of-the-far-medial-transoral-endoscopic-approach-to-the-infratemporal-fossa
#6
Hafiz S Patwa, Juan C Yanez-Siller, Matias Gomez Galarce, Bradley A Otto, Daniel M Prevedello, Ricardo L Carrau
OBJECTIVES/HYPOTHESIS: To demonstrate anatomic relationships of the far-medial transoral endoscopic assisted approach (FMT-EAA) to the infratemporal fossa (ITF) and define the corridor dimensions, surgical freedom, and limitations associated with this approach. STUDY DESIGN: Cadaveric study. METHODS: Twenty ITFs (10 specimens) were dissected with the assistance of 0 °, 30 °, and 45 ° rod-lens endoscopes. Image guidance was used to confirm and measure the corridors' structural boundaries and document the anatomical relationships encountered in this approach...
May 4, 2018: Laryngoscope
https://www.readbyqxmd.com/read/29685418/glioblastoma-multiforme-metastases-to-the-masticator-muscles-and-the-scalp
#7
Jordi Pérez-Bovet, Jordi Rimbau-Muñoz
Glioblastoma multiforme (GBM) is the most common malignant primary brain tumor. Metastases outside the nervous system are a rare phenomenon. We present a pictographically striking case of GBM with metastases in the masticatory muscles of the infratemporal fossa and the scalp, in the context of a dense intracranial dissemination. Extracranial metastases of GBM have been reported anecdotally, while, to our knowledge, masticatory muscle metastases have been previously reported in only one case.
April 20, 2018: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/29682361/recurrent-ameloblastoma-a-surgical-challenge
#8
Chithra Aramanadka, Abhay Taranath Kamath, Adarsh Kudva
Ameloblastoma is locally aggressive benign odontogenic tumour with increased risk of recurrence rate. The choice of treatment depends on the histologic subtype. Radical therapy is the recommended modality for solid ameloblastomas. The possibilities of recurrence even after enbloc resection are still high. The author presents two case reports of recurrent ameloblastomas postradical resection. First case describes the recurrence of ameloblastoma in the bone graft which was used for reconstruction, and the second case depicts recurrence in the infratemporal fossa...
2018: Case Reports in Dentistry
https://www.readbyqxmd.com/read/29660062/minimally-invasive-exposure-of-the-maxillary-artery-at-the-anteromedial-infratemporal-fossa
#9
Roberto Rodriguez Rubio, Olivia Kola, Ali Tayebi Meybodi, Halima Tabani, Xuequan Feng, Jan-Karl Burkhardt, Sonia Yousef, Michael T Lawton, Arnau Benet
BACKGROUND: The maxillary artery (MA) has been described as a reliable donor for extracranial-intracranial high-flow bypass. Existing techniques to harvest MA require brain retraction and drilling of the middle fossa (with or without a zygomatic osteotomy), carrying the potential risks of venous bleeding, injury to the branches of the maxillary or mandibular nerves, muscular transection, or temporomandibular junction disorders. OBJECTIVE: To describe a novel technique to expose the MA without bony drilling and with minimal impact to surrounding structures...
April 12, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29616298/intracranial-malignant-peripheral-nerve-sheath-tumor-variant-an-unusual-neurovascular-phenotype-sarcoma-case-invading-through-the-petrous-bone
#10
Oliver D Mrowczynski, Robert J Greiner, Malika Kapadia, Julie C Fanburg-Smith, Mark R Iantosca, Elias B Rizk
INTRODUCTION: Intracranial malignant peripheral nerve sheath tumor (MPNST) is exceedingly rare. Previously reported cases of intracranial MPNST have been associated with development within a prominent cranial nerve. METHODS: This is the first report of an MPNST with both nerve sheath and vascular phenotype that follows the neurovascular bundle, without arising in a major cranial nerve or in the setting of neurofibromatosis type 1 (NF1). RESULTS: The patient is a 14-year-old boy with a history of worsening headaches for the past several months, left-sided hearing loss, nausea, vomiting, and vertigo...
April 3, 2018: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/29556387/management-consideration-for-patient-with-a-large-solitary-fibrous-tumor-occupying-the-infratemporal-fossa-a-case-report
#11
Makoto Adachi, Masayuki Motohashi, Yasuhiko Kaku, Shigeyuki Sugie, Yasunori Muramatsu, Shinichiro Sumitomo
The solitary fibrous tumor (SFT) was first described as a mesenchymal tumor of fibroblastic type, present in the pleura. The head and neck area is the third most common site of SFT occurrence. Numb chin syndrome (NCS) is a rare neurological symptom. The current report describes the case of a 39-year-old female patient referred to the present hospital with NCS, which was later observed to be due to a large SFT in the infratemporal fossa. Computed tomography and magnetic resonance images were taken and subsequent examination of these images revealed a space occupying mass (52×50×40 mm) in the infratemporal fossa...
April 2018: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/29535969/infratemporal-fossa-abscess-of-dental-origin-a-rare-severe-and-misdiagnosed-infection
#12
Min-Young Park, Hoon-Soo Kim, Hyun-Chang Ko, Moon-Bum Kim, Byung-Soo Kim
No abstract text is available yet for this article.
February 2018: Journal of the Korean Association of Oral and Maxillofacial Surgeons
https://www.readbyqxmd.com/read/29510274/an-alternative-endoscopic-anterolateral-route-to-meckel-s-cave-an-anatomical-feasibility-study-using-a-sublabial-transmaxillary-approach
#13
Kaan Yağmurlu, Michael A Mooney, Kaith K Almefty, Baran Bozkurt, Necmettin Tanriover, Andrew S Little, Mark C Preul
OBJECTIVE: To describe an endoscopic anterolateral surgical route to the lateral portion of Meckel's cave. METHODS: A sublabial transmaxillary transpterygoid approach was performed in 6 cadaveric heads (12 sides). A craniectomy was drilled between the foramen rotundum (FR) and foramen ovale (FO) with defined borders. Extradural dissection was performed up to the V2-V3 junction of the trigeminal ganglion. The working space was analyzed using anatomical measurements...
March 3, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29479514/combined-open-and-endoscopic-endonasal-skull-base-resection-of-a-rare-endometrial-carcinoma-metastasis
#14
Melissa M Stamates, John M Lee, Ryan T Merrell, Michael J Shinners, Ricky H Wong
In the absence of significant extracranial disease, patients with solitary brain metastases have shown benefit with resection. Brain lesions due to endometrial cancer are uncommon, and the only described skull base involvement is limited to the pituitary gland. We report the case of a 60-year-old female with endometrial cancer who presented with weeks of right cheek pain and numbness that was accompanied by headaches. We describe the magnetic resonance imaging (MRI) findings and surgical resection of a solitary endometrial metastasis involving the infratemporal fossa, middle fossa, cavernous sinus, trigeminal nerve, and nasal sinuses...
January 2018: Journal of Neurological Surgery Reports
https://www.readbyqxmd.com/read/29475080/partial-maxillectomy-for-ameloblastoma-of-the-maxilla-with-infratemporal-fossa-involvement-a-combined-endoscopic-endonasal-and-transoral-approach
#15
A Guha, L Hart, H Polachova, M Chovanec, P Schalek
Ameloblastoma represents the most common epithelial odontogenic tumor. Because of the proximity of the maxillary tumors to the orbit and skull base, it should be managed as radically as possible. Maxillectomy, mainly via the transfacial or transoral approach, represents the most common type of surgical procedure. Drawback of these approaches is limited control of the superiomedial extent of the tumour in the paranasal area. We report the use of a combined endoscopic endonasal and transoral approach to manage maxillary plexiform ameloblastoma in a 48-year-old male patient...
February 21, 2018: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29455674/aggressive-fibromatosis-in-the-infratemporal-fossa-presenting-as-trismus-a-case-report
#16
Sunil Munakomi
BACKGROUND: Here we report a very rare entity of an infratemporal region aggressive fibromatosis in a 23-year-old Tharu man who had presented with the symptoms of painless but progressive trismus. CASE PRESENTATION: We describe a case of aggressive fibromatosis in a 23-year-old Tharu man. Radiological imaging as well as an immunohistochemistry panel from a biopsy indicated a diagnosis of an aggressive fibromatosis. Since there was no aggravation in his trismus following surgery and because of his poor socioeconomic status, he was advised to attend regular follow-up visits without any adjuvant therapy...
February 19, 2018: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/29404235/developmental-considerations-in-pediatric-skull-base-surgery
#17
REVIEW
Melissa A LoPresti, Jonathan N Sellin, Franco DeMonte
Objectives  To review developmental surgical anatomy and technical nuances related to pediatric skull base surgery. Design  Retrospective, single-center case series with literature review. Setting  MD Anderson Cancer Center. Participants  Patients undergoing pediatric skull base surgery. Main Outcome Measures  Review developmental anatomy of the pediatric skull base as it relates to technical nuance of various surgical approaches and insight gained from a 25-year institutional experience with this unique patient population...
February 2018: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/29402308/cavernous-sinus-involvement-is-not-a-risk-factor-for-the-primary-tumor-site-treatment-outcome-of-sinonasal-adenoid-cystic-carcinoma
#18
Yi-Chan Lee, Ta-Jen Lee, Ngan-Ming Tsang, Yenlin Huang, Cheng-Lung Hsu, Li-Jen Hsin, Yi-Hsuan Lee, Kai-Ping Chang
BACKGROUND: Sinonasal adenoid cystic carcinoma is a rare malignancy of the head and neck. Cavernous sinus invasion from sinonasal adenoid cystic carcinoma and its related management have rarely been investigated. This study evaluated the relationship between treatment outcome and cavernous sinus involvement in addition to other parameters. METHODS: A retrospective case series study was conducted at a tertiary referral center. The medical records of 47 patients diagnosed with primary sinonasal adenoid cystic carcinoma between 1984 and 2015 were retrospectively reviewed...
February 5, 2018: Journal of Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/29393751/endoscopic-anterior-transmaxillary-transalisphenoid-approach-to-meckel-s-cave-and-the-middle-cranial-fossa-an-anatomical-study-and-clinical-application
#19
Huy Q Truong, Xicai Sun, Emrah Celtikci, Hamid Borghei-Razavi, Eric W Wang, Carl H Snyderman, Paul A Gardner, Juan C Fernandez-Miranda
OBJECTIVE Multiple approaches have been designed to reach the medial middle fossa (for lesions in Meckel's cave, in particular), but an anterior approach through the greater wing of the sphenoid (transalisphenoid) has not been explored. In this study, the authors sought to assess the feasibility of and define the anatomical landmarks for an endoscopic anterior transmaxillary transalisphenoid (EATT) approach to Meckel's cave and the middle cranial fossa. METHODS Endoscopic dissection was performed on 5 cadaver heads injected intravascularly with colored silicone bilaterally to develop the approach and define surgical landmarks...
February 2, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29391297/minimally-invasive-lateral-endoscopic-multiport-approach-to-the-infratemporal-fossa-a-cadaveric-study
#20
Abraam Yacoub, Lukas Anschuetz, Daniel Schneider, Wilhelm Wimmer, Marco Caversaccio
BACKGROUND: Expanded endoscopic endonasal approaches to the infratemporal fossa (ITF) are increasingly performed owing to improved visualization and less morbidity compared with classic open approaches. Only a few studies in the literature investigated lateral endoscopic access to the ITF. The aim of this study was to examine the ITF with the minimally invasive endoscopically assisted Gillies approach with a trial of its expansion through a double port technique. METHODS: The ITF was examined in 10 sides of 5 cadaveric heads using a lateral endoscopic assisted approach...
April 2018: World Neurosurgery
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