534 results match your criteria Skull Base Petrous Apex Tumors


Experience With the Endoscopic Contralateral Transmaxillary Approach to the Petroclival Skull Base.

Laryngoscope 2020 May 15. Epub 2020 May 15.

Center for Cranial Base Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA.

Objectives/hypothesis: The contralateral transmaxillary (CTM) approach is a new surgical approach that improves the surgical trajectory relative to the petrous segment of the internal carotid artery (ICA). Here, we present our clinical experience with the CTM approach to the petroclival region of the skull base.

Study Design: Retrospective review. Read More

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http://dx.doi.org/10.1002/lary.28740DOI Listing

Dissection of the Petrosal Presigmoid-Retrolabyrinthine Approach for the Petroclival Region on a Cadaver: 2-Dimensional Operative Video.

Oper Neurosurg (Hagerstown) 2020 May 11. Epub 2020 May 11.

The Loyal and Edith Davis Neurosurgical Research Laboratory, Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona.

Skull base epidermoid tumors, meningiomas, and schwannomas can be accessed by different techniques depending on the location and size of the lesion. Small lesions located anterior to the internal acoustic meatus (IAM) can be accessed via the subtemporal approach, and lesions located posterior to the IAM can be approached via retrosigmoid craniotomy. However, expansive lesions that are located anterior to the IAM and extend posteriorly toward the lower clivus can be accessed via the petrosal approach. Read More

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http://dx.doi.org/10.1093/ons/opaa117DOI Listing

Hybrid antero-lateral transcondylar approach to the clivus: a laboratory investigation and case illustration.

Acta Neurochir (Wien) 2020 Jun 25;162(6):1259-1268. Epub 2020 Apr 25.

Department of Neurosurgery, Hôpital Lariboisière, Assistance Publique-Hôpitaux de Paris, Université de Paris, 2 rue Ambroise Pare, 75010, Paris, France.

Background: Surgical treatment of lesions involving the ventral craniovertebral junction (CVJ) and the lower clivus, traditionally involved complex lateral or transoral approaches to the skull base. However, mid or upper clivus involvement requires more extensive lateral approaches. Recently, the endoscopic endonasal approach (EEA) has become the standard for upper CVJ lesions and medial clival, and a valuable alternative for those tumors extending in its upper third as well as laterally. Read More

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http://dx.doi.org/10.1007/s00701-020-04343-4DOI Listing

Tumors of the temporal bone.

Cas Lek Cesk 2019 ;158(6):248-252

Temporal bone tumors are rare entities. Histologically these pathologies represent heterogeneous group of diseases. The most common tumors of the temporal bone are vestibular schwannoma, tympanojugular paragangliomas and temporal bone carcinomas. Read More

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January 2020

From the Occipital Condyle to the Sphenoid Sinus: Extradural Extension of the Far Lateral Transcondylar Approach with Endoscopic Assistance.

World Neurosurg 2020 Feb 14;134:e771-e782. Epub 2019 Nov 14.

Department of Neurosurgery, Lariboisière Hospital, Paris VII-Diderot University, Paris, France.

Background: Surgical management of extensive skull base tumors, such as chordoma and chondrosarcoma, remains very challenging. The need for gross total removal to improve survival must be weighed against the risk of injury to neurovascular structures and the loss of stability at the craniovertebral junction. In cases of tumors that are already compromising craniovertebral junction stability, the occipital condyle can be exploited as a deep keyhole to reach the clivus, petrous apex, and sphenoid sinus. Read More

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http://dx.doi.org/10.1016/j.wneu.2019.10.190DOI Listing
February 2020

Application of 3D-Printed Craniocerebral Model in Simulated Surgery for Complex Intracranial Lesions.

World Neurosurg 2020 Feb 8;134:e761-e770. Epub 2019 Nov 8.

Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing, P. R. China.

Objective: To demonstrate the use of 3-dimensional (3D)-printed intracranial lesion models for complex neurosurgery to increase the success rate of clinical surgeries via practice in simulated surgeries.

Methods: We collected computed tomographic, magnetic resonance (MR), and computed tomographic images from patients with intracranial tumor or aneurysm, conducted multimodal image reconstruction, and then constructed a 3D-printed model with the skull base, cerebral arteries, and brain tumor or aneurysm. Forty-nine simulated surgeries were carried out on the model under a microscope, and actual surgery was carried out after validation and accumulation of experience. Read More

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http://dx.doi.org/10.1016/j.wneu.2019.10.191DOI Listing
February 2020
5 Reads

Endoscopic transmastoid posterior petrosal approach for locally aggressive tumors in the petrous part of the temporal bone involving the internal auditory canal, jugular foramen, and hypoglossal canal.

J Neurosurg 2019 Sep 27:1-13. Epub 2019 Sep 27.

Departments of1Neurosurgery and.

Objective: The posterior petrosal approach is an established surgical method offering wide access to skull base lesions through mastoid air cells. The authors describe their experience with the endoscopic transmastoid "posterior petrosal" approach (EPPAP) for skull base tumors involving the internal auditory canal (IAC), jugular foramen, and hypoglossal canal.

Methods: The EPPAP was performed for 7 tumors (3 chordomas, 2 chondrosarcomas, 1 schwannoma, and 1 solitary fibrous tumor). Read More

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http://dx.doi.org/10.3171/2019.5.JNS19187DOI Listing
September 2019
2 Reads

Anterolateral thigh free flap in reconstruction of lateral skull base defects after oncological resection.

Eur Arch Otorhinolaryngol 2019 Dec 12;276(12):3487-3494. Epub 2019 Sep 12.

Department of Otolaryngology and Laryngological Oncology, Medical University of Lublin, Jaczewskiego 8, 20 954, Lublin, Poland.

Purpose: Evaluation of the utility of the free anterolateral thigh flap reconstruction of the defects resulting from radical temporal bone resection in the management of lateral skull base malignancies in a single institution.

Methods: An analysis of 17 en bloc subtotal petrosectomies for removal of malignant tumours was performed. There were 12 squamous cell carcinomas, 4 basal cell carcinomas and 1 adenoid cystic carcinoma. Read More

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http://dx.doi.org/10.1007/s00405-019-05627-xDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6858904PMC
December 2019
3 Reads

Anterior Transpetrosal Approach and Microsurgical Resection of a Petrous Tentorial Meningioma: 3-Dimensional Operative Video.

Oper Neurosurg (Hagerstown) 2020 Jun;18(6):E236-E237

Department of Neurosurgery, Evangelical University Hospital of Curitiba, Curitiba, Brazil.

Tentorial meningiomas are challenging tumors because of its complex relationship with vital neurovascular structures. We present the case of a 41-yr-old female with a history of right-sided facial numbness associated with pain around the ear. Magnetic resonance imaging demonstrated a lesion in the right tentorium edge closely related with the porus trigeminus, suggestive of a meningioma. Read More

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http://dx.doi.org/10.1093/ons/opz231DOI Listing
June 2020
9 Reads

Clinical classification of clival chordomas for transnasal approaches.

Neurosurg Rev 2019 Aug 8. Epub 2019 Aug 8.

Department of Neurosurgery, The First Affiliated Hospital of China Medical University, No. 155, North Nanjing Street, Heping District, Shenyang, 110001, Liaoning, People's Republic of China.

Endoscopic endonasal approaches (EEAs) are ideal for most chordomas, but there is little information regarding the practical clinical classification of clival chordomas to guide surgery with EEAs. This article investigates a relatively concise and practical clinical classification system for clival chordomas and summarizes the clinical characteristics and operative key points of different clinical types. Here, 55 patients with clival chordomas treated through EEAs from 2012 to 2017 were retrospectively reviewed. Read More

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http://dx.doi.org/10.1007/s10143-019-01153-wDOI Listing
August 2019
5 Reads

Primary intraosseous osteolytic meningioma: a case report and review of the literature.

BMC Neurol 2019 Jul 23;19(1):176. Epub 2019 Jul 23.

Departments of Pathology, College of Medicine, Hanyang University, 17 Haengdang-dong, Seongdong-gu, 133-792, Seoul, Republic of Korea.

Background: Primary intraosseous meningioma is a subset of extradural meningioma that arises in the bone, and only a few cases have been reported to date.

Case Presentation: An 80-year-old man presented with decreased hearing on the right side accompanied by a disturbance of balance 10 months prior to admission. Magnetic resonance imaging revealed an 8 × 7 cm osteolytic mass in the right posterior fossa related to the petrous bone, with extension to the cervical region. Read More

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http://dx.doi.org/10.1186/s12883-019-1392-5DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6647308PMC
July 2019
3 Reads

Extra-intradural extracavernous subtemporal approach for chondrosarcomas: technical note and case report.

Acta Neurochir (Wien) 2019 11 4;161(11):2349-2352. Epub 2019 Jul 4.

Skull Base Surgery Unit, Department of Neurosurgery B, Hospices Civils de Lyon, University Hospital of Lyon, Lyon, France.

Background: Skull base chondrosarcomas are rare tumors often invading the petrous apex and cavernous sinus, and many surgical approaches have been described. For most of them, these tumors grow slowly and their partial removal can be a first option before complementary radiotherapy. We described herein a minimally invasive approach that could be useful for soft non-calcified chondrosarcomas. Read More

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http://dx.doi.org/10.1007/s00701-019-03989-zDOI Listing
November 2019

The Transpetrosal-Ridge Approach: A Modification of the Combined Transpetrosal Approach.

Authors:
Eddie T W Tan

World Neurosurg X 2019 Apr 24;2:100009. Epub 2019 Jan 24.

Department of Neurosurgery, National Neuroscience Institute, Singapore.

Background: Petroclival tumors are formidable challenges for skull base surgeons. Obtaining adequate surgical access is a paramount consideration. Although the combined transpetrosal approach provides a wide surgical corridor, it is technically challenging and, to a degree, morbid. Read More

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http://dx.doi.org/10.1016/j.wnsx.2019.100009DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6580894PMC
April 2019
22 Reads

Anterior Petrosal Approach for the Resection of a Petrous Apex Meningioma with Tentorial Infiltration.

J Neurol Surg B Skull Base 2019 Jun 4;80(Suppl 3):S304. Epub 2019 Feb 4.

Department of Neurosurgery, Centro Médico Nacional 20 de Noviembre, ISSSTE, Mexico City, Mexico.

 The anterior petrosal approach is an extension of the middle fossa approach, characterized by drilling of the posteromedial triangle of the middle fossa. Drilling the Kawase's rhomboid creates a surgical corridor to the posterior fossa after splitting the tentorium. We present a case of a petrous apex meningioma invading the tentorium and causing trigeminal neuralgia. Read More

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http://dx.doi.org/10.1055/s-0038-1677496DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6534690PMC
June 2019
8 Reads

Retrosigmoid Intradural Temporal Bone Drilling for Intrapetrous Chondrosarcoma Extending to Cerebellopontine Angle.

World Neurosurg 2019 02 25;122:28. Epub 2018 Oct 25.

Department of Neurosurgery, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan.

Recently the intradural temporal bone drilling has been used in conjunction with the retrosigmoid approach to allow expanded to access to a variety of types of intraosseous invasions.Video 1 demonstrates the intradural temporal bone drilling via the retrosigmoid approach in the microsurgical removal of an intrapetrous chondrosarcoma extending to the cerebellopontine angle. The patient was a 23-year-old woman presented with progressive hearing disturbance, hemifacial spasm, and tinnitus. Read More

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http://dx.doi.org/10.1016/j.wneu.2018.10.104DOI Listing
February 2019
11 Reads

Long term surgical results of 154 petroclival meningiomas: A retrospective multicenter study.

Neurochirurgie 2019 Apr - Jun;65(2-3):55-62. Epub 2019 May 16.

Department of Neurosurgery, CHU APHM-Hopital Nord, 13015 Marseille, France. Electronic address:

Background: Outcomes of petroclival meningiomas (PCM) (morbidity, permanent cranial nerves deficit, tumor removal and recurrence) are inconsistent in the literature, making it a challenge to predict surgical morbidity.

Methods: A multicenter study of patients with PCMs larger than 2.5cm between 1984 and 2017 was conducted. Read More

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http://dx.doi.org/10.1016/j.neuchi.2019.02.001DOI Listing
November 2019
5 Reads

Visualization of Dark Side of Skull Base with Surgical Navigation and Endoscopic Assistance: Extended Petrous Rhomboid and Rhomboid with Maxillary Nerve-Mandibular Nerve Vidian Corridor.

World Neurosurg 2019 Sep 17;129:e134-e145. Epub 2019 May 17.

Department of Neurosurgery, Tokyo Jikei University school of Medicine, Tokyo, Japan.

Background: Lesions located at the petrous apex, cavernous sinus, clivus, medial aspect of the jugular foramen, or condylar regions are still difficult to fully expose using the operating microscope. Although approaches to this region through the middle cranial fossa have been previously described, these approaches afford only limited visualization. We have confirmed a transcranial infratemporal fossa combined microsurgical and endoscopic access to the petrous apex, clivus, medial aspect of the jugular foramen, and occipital condyle. Read More

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http://dx.doi.org/10.1016/j.wneu.2019.05.062DOI Listing
September 2019
34 Reads

Primary Petrous Apex Epidermoids With Skull Base Erosion.

Otol Neurotol 2019 06;40(5):e556-e561

Division of Otolaryngology - Head and Neck Surgery, University of Utah, Salt Lake City, Utah.

Objective: To describe the clinical course and treatment outcomes for patients with petrous apex epidermoid with skull base erosion.

Study Design: Retrospective case series.

Setting: Tertiary-care academic center. Read More

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http://dx.doi.org/10.1097/MAO.0000000000002199DOI Listing

Trigeminal Ganglion Metastasis of Renal Clear Cell Carcinoma: Cases Report and Review of the Literature.

World Neurosurg 2019 Aug 3;128:541-546. Epub 2019 May 3.

Department of Neurotrauma/Neurosurgery, Nantes University Hospital, Saint-Herblain, France.

Background: The trigeminal ganglion is an atypical site for metastasis, especially for renal clear cell carcinoma.

Case Description: We report 2 clinical cases of a 66-year-old man and a 58-year-old man with trigeminal symptoms. Both patients had a history of renal clear cell (RCC) that was considered to be cured at 6 and 9 years, respectively. Read More

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http://dx.doi.org/10.1016/j.wneu.2019.04.230DOI Listing
August 2019
13 Reads

Hand-Held Thulium Laser Fiber and Ultrasonic Aspirator for Opening the Internal Auditory Canal During Acoustic Neuroma Microneurosurgery: Operative Technique.

World Neurosurg 2019 Jun 27;126:497. Epub 2019 Mar 27.

Unit of Neurosurgery, San Filippo Neri Hospital, Rome, Italy.

Video 1 describes the technique of microsurgery removal of acoustic neuromas (ANs) using new technologies. The Flexible 2μ-Thulium hand-held laser fiber (Revolix jr, LISA laser products, 7 OHG, Berlin, Germany) and Sonopet Ultrasound Aspirator (Stryker, Kalamazoo, Michigan, USA) can be used for a safe and facilitated opening of the internal auditory canal (IAC). We illustrate the operative technique used on a surgical series of 111 cases operated on during the past 8 years, from July 2010 to July 2018. Read More

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http://dx.doi.org/10.1016/j.wneu.2019.03.204DOI Listing
June 2019
4 Reads

Surgical salvage of recurrent T3 nasopharyngeal carcinoma: Prognostic significance of clivus, maxillary, temporal and sphenoid bone invasion.

Oral Oncol 2019 04 4;91:85-91. Epub 2019 Mar 4.

Division of Head and Neck Surgery, Department of Surgery, University of Hong Kong Li Ka Shing Faculty of Medicine, Queen Mary Hospital, China.

Background: To study the efficacy of surgery for recurrent T3 nasopharyngeal carcinoma (NPC) and to determine the prognostic significance of various skull base bone invasion.

Method: Retrospective view of the surgical outcome for recurrent T3 NPC. Kaplan Meier and log rank tests were used to determine the 5-year overall and disease specific survival. Read More

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http://dx.doi.org/10.1016/j.oraloncology.2019.02.023DOI Listing
April 2019
1 Read

Bone Subtraction Iodine Imaging Using Area Detector CT for Evaluation of Skull Base Invasion by Nasopharyngeal Carcinoma.

AJNR Am J Neuroradiol 2019 01 6;40(1):135-141. Epub 2018 Dec 6.

From the Department of Diagnostic Radiology (T.H., H.K., K.S., M.K., T.K.), National Cancer Center Hospital East, Kashiwa, Chiba, Japan.

Background And Purpose: Conventional CT has generally lower detectability of bone marrow invasion than MR imaging due to lower tissue contrast. The purpose of this study was to compare the diagnostic performance of conventional CT alone or in combination with bone subtraction iodine imaging using area detector CT for the evaluation of skull base invasion in patients with nasopharyngeal carcinoma.

Materials And Methods: Forty-four consecutive patients who underwent contrast-enhanced CT using 320-row area detector CT and contrast-enhanced MR imaging for nasopharyngeal carcinoma staging between April 2012 and November 2017 were enrolled in this retrospective study. Read More

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http://www.ajnr.org/lookup/doi/10.3174/ajnr.A5906
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http://dx.doi.org/10.3174/ajnr.A5906DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7048612PMC
January 2019
12 Reads

Preservation of Venous Drainage in Middle Fossa During Combined Transpetrosal Approach for Petroclival Meningioma.

World Neurosurg 2019 Mar 6;123:67. Epub 2018 Dec 6.

Department of Neurosurgery, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan.

The combined transpetrosal approach enables wide exposure around the petroclival region by lifting of the middle fossa dura and cutting of the tentorium. However, interruption of the venous drainage on the middle skull base during the transpetrosal approach has been reported to lead to temporal lobe damage.Video 1 demonstrates a microsurgical technique for the preservation of various venous drainage in the middle fossa including the sphenobasal and sphenopetrosal veins during the combined transpetrosal approach for treatment of a petroclival meningioma. Read More

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http://dx.doi.org/10.1016/j.wneu.2018.11.215DOI Listing
March 2019
9 Reads

Chondrosarcoma in the Petrous Apex: Case Report and Review.

J Neurol Surg Rep 2018 Oct 18;79(4):e83-e87. Epub 2018 Oct 18.

Division of Neurosurgery, Department of Surgery, The Ottawa Hospital, Ottawa, Canada.

 Surgical treatment of petrous apex chondrosarcoma is challenging due to the location of the tumor. Using an endoscopic technique for tumor resection is favored since it provides a minimally invasive approach.  A 57 years old female was admitted for acute onset of left abducens nerve palsy and occasional headache mainly on the left side of the retro-orbital area with some radiation to the left occiput. Read More

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http://www.thieme-connect.de/DOI/DOI?10.1055/s-0038-1673627
Publisher Site
http://dx.doi.org/10.1055/s-0038-1673627DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6193802PMC
October 2018
25 Reads

Combined Transpetrosal Approach With Preservation of Superior Petrosal Vein Drainage for a Cerebellopontine Angle Epidermoid Cyst Extending Into Meckel's Cave: 3-Dimensional Operative Video.

Oper Neurosurg (Hagerstown) 2019 Jun;16(6):E172-E173

Department of Neurosurgery, Tokyo Medical University, Tokyo, Japan.

The combined transpetrosal approach enables wide exposure around the petroclival region by cutting the tentorium and superior petrosal sinus. We often choose this approach for removal of tumors ventral to the facial and vestibulocochlear nerves, such as petroclival meningioma and epidermoid cyst, because complete removal of the tumor under direct visualization is required to prevent its later recurrence, especially in young patients. Recent reports revealed anatomical variations of the drainage of the superior petrosal sinus, and dural incision considering preservation of the superior petrosal vein was proposed. Read More

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http://dx.doi.org/10.1093/ons/opy286DOI Listing
June 2019
5 Reads

Endoscopic sequestrectomy for skull base osteoradionecrosis in nasopharyngeal carcinoma patients: a 10‑year experience.

Int J Clin Oncol 2019 Mar 9;24(3):248-255. Epub 2018 Nov 9.

Department of Otolaryngology, Eye Ear Nose and Throat Hospital, Shanghai Medical College, Fudan University, 83 Fenyang Road, Shanghai, People's Republic of China.

Background: Skull base osteoradionecrosis is a devastating post-irradiation complication in nasopharyngeal carcinoma patients. We conducted a retrospective analysis to assess the long-term survival and prognostic factors of patients with skull base osteoradionecrosis treated with endoscopic sequestrectomy.

Methods: We enrolled 59 nasopharyngeal carcinoma patients with skull base osteoradionecrosis who underwent endoscopic nasopharyngectomy. Read More

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http://link.springer.com/10.1007/s10147-018-1354-8
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http://dx.doi.org/10.1007/s10147-018-1354-8DOI Listing
March 2019
59 Reads

Surgical considerations in a paediatric case of a large skull-base epithelioid haemangioendothelioma.

Childs Nerv Syst 2019 03 19;35(3):559-563. Epub 2018 Oct 19.

Alfred Health, Melbourne, Australia.

Intracranial epithelioid haemangioendothelioma (EHE) is a rare intermediate grade vascular tumour with heterogeneous clinical and histopathological behaviour. We present the surgical considerations of an exceptionally large skull-based EHE in an 11-year old female who presented to our institution with headaches and a protuberance over the left parietal area. Magnetic resonance imaging (MRI) demonstrated a left sided 10. Read More

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http://link.springer.com/10.1007/s00381-018-3988-2
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http://dx.doi.org/10.1007/s00381-018-3988-2DOI Listing
March 2019
26 Reads

IDH mutation status in a series of 88 head and neck chondrosarcomas: different profile between tumors of the skull base and tumors involving the facial skeleton and the laryngotracheal tract.

Hum Pathol 2019 02 5;84:183-191. Epub 2018 Oct 5.

CHRU de Tours, Service d'Anatomie et Cytologie Pathologiques, Tours, France; Université de Tours, Faculté de Médecine, Tours, France; Laboratoire d'étude des sarcomes osseux et remodelage des tissus calcifiés, PhyOS-INSERM UMR 1238, Faculté de Médecine de Nantes, Université de Nantes, 44034 Nantes cedex 1, France. Electronic address:

Chondrosarcomas are rare primary malignant bone tumors that involve the head and neck region in 1% to 12% of cases. Central conventional chondrosarcoma is the most common subtype and is associated with isocitrate dehydrogenase 1 and 2 (IDH1 and IDH2) gene mutations in 50% to 60% of cases. We aimed to define the frequency of IDH1 and IDH2 gene mutations in a multicenter series of 88 cases of chondrosarcoma of the head and neck, including tumors involving the base of the skull (n = 30), the facial skeleton (n = 11), and the laryngeal and tracheal cartilages (n = 47). Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00468177183037
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http://dx.doi.org/10.1016/j.humpath.2018.09.015DOI Listing
February 2019
16 Reads

Meckel's Cave Meningiomas: New Classification System Focalized on Dumbbell Lesions Deriving from the Morphometric Analysis of the Posterior Petrous Apicectomy on Fresh Non-Formalin-Fixed Specimens. A Correlative Anatomoclinical Study.

World Neurosurg 2018 Oct 6;118:e489-e499. Epub 2018 Jul 6.

Chair of Bari University Medical School, Bari, Italy.

Background: The Meckel's cave (MC) is commonly affected by neoplastic lesions that often require neurosurgical treatment. We simulated the posterior petrous apicectomy (PPA) on fresh cadavers to verify the in vivo feasibility of the approach. We proposed a new classification system of MC meningioma based on the extent of middle cranial fossa (MCF) involvement. Read More

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http://dx.doi.org/10.1016/j.wneu.2018.06.222DOI Listing
October 2018
8 Reads

Stereoscopic Surgical Video of Combined Petrosectomy With Virtual Reality Headset: 3-Dimensional Operative Video.

Oper Neurosurg (Hagerstown) 2019 May;16(5):638-639

Department of Neurosurgery, CHU, Angers, France.

The use of 3-dimensional (3D) videos allows students to visualize surgical procedures from the perspective of the surgeon without missing the essential parts.1 This 3D commented video demonstrates the operative technique and surgical nuances of the combined petrosectomy, visualize using virtual reality headsets. Historically, traditional intradural cisternal routes using suboccipital and pterional approaches have been proposed to remove petroclival tumors. Read More

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https://academic.oup.com/ons/advance-article/doi/10.1093/ons
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http://dx.doi.org/10.1093/ons/opy228DOI Listing
May 2019
9 Reads

Real-Time Navigation-Guided Drilling Technique for Skull Base Surgery in the Middle and Posterior Fossae.

J Neurol Surg B Skull Base 2018 Oct 17;79(Suppl 4):S334-S339. Epub 2018 Jul 17.

Department of Neurosurgery, Shinshu University School of Medicine, Matsumoto, Japan.

 The usefulness of the bony surface registration method for navigation system image-guided surgery in the lateral or prone position has been reported. This study was performed to evaluate the efficacy of our new real-time navigation-guided drilling technique with bony surface registration for skull base surgery in the middle and posterior fossae.  The study included 29 surgeries for skull base tumors that required drilling of the petrous bone between January 2015 and December 2017 in Shinshu University Hospital. Read More

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http://dx.doi.org/10.1055/s-0038-1667044DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6133694PMC
October 2018
2 Reads

Supratotal Resection of Residual Clival Chordoma With Combined Endoscopic Endonasal and Contralateral Transmaxillary Approaches: 2-Dimensional Operative Video.

Oper Neurosurg (Hagerstown) 2019 Mar;16(3):E88-E89

Department of Otolaryngology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania.

The optimal treatment for skull base chordomas is gross total resection followed by radiotherapy and not radiation of partially resected tumors. Supratotal resection, defined as removal beyond all involved bone and dura, is ideal but difficult to achieve.  In this video, we present the case of a 37-yr-old man with new onset of progressive cranial nerve sixth palsy and a skull base lesion compatible with clival chordoma. Read More

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http://dx.doi.org/10.1093/ons/opy220DOI Listing
March 2019
10 Reads

One burr-hole craniotomy: Upper retrosigmoid approach in helsinki neurosurgery.

Surg Neurol Int 2018 14;9:163. Epub 2018 Aug 14.

International Center for Neurosurgery, Henan Provincial People's Hospital, Zhengzhou, China.

Background: In this video-abstract, we present a one burr-hole craniotomy for the upper retrosigmoid approach developed in Helsinki Neurosurgery to access the lateral cerebellar hemisphere, the cerebellopontine angle, and lateral skull base (e.g. including the posterior petrous bone). Read More

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http://dx.doi.org/10.4103/sni.sni_186_18DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6108164PMC
August 2018
34 Reads

Safety profile of superior petrosal vein (the vein of Dandy) sacrifice in neurosurgical procedures: a systematic review.

Neurosurg Focus 2018 07;45(1):E3

OBJECTIVE Walter E. Dandy described for the first time the anatomical course of the superior petrosal vein (SPV) and its significance during surgery for trigeminal neuralgia. The patient's safety after sacrifice of this vein is a challenging question, with conflicting views in current literature. Read More

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http://dx.doi.org/10.3171/2018.4.FOCUS18133DOI Listing
July 2018
19 Reads
2.105 Impact Factor

Comprehensive review of the extended middle cranial fossa approach.

Curr Opin Otolaryngol Head Neck Surg 2018 Oct;26(5):286-292

Department of Otolaryngology - Head and Neck Surgery, University of Cincinnati College of Medicine.

Purpose Of Review: To review the current literature on the extended middle cranial fossa (xMCF) approach and to provide a comprehensive description of the relevant anatomy, indications, surgical technique, results, and complications.

Recent Findings: The xMCF approach expands the surgical exposure provided by the sMCF approach, allowing access to the internal auditory canal, cerebellopontine angle, prepontine cistern, anterior petrous apex, petrous carotid artery, Meckel's cave, cavernous sinus, mid and upper clivus, and posterior lesions approaching the jugular foramen. Preservation of serviceable hearing is possible with success rates approximating 50% in vestibular schwannoma and meningioma resection, and facial nerve outcome is excellent. Read More

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http://dx.doi.org/10.1097/MOO.0000000000000471DOI Listing
October 2018
11 Reads

How to perform microscopic/endoscopic resection of large petrous apex lesions.

Eur Ann Otorhinolaryngol Head Neck Dis 2018 Dec 20;135(6):443-447. Epub 2018 Jun 20.

Service d'ORL et de chirurgie cervico-faciale, CHU de Caen, avenue de la Côte-de-Nacre, 14000 Caen, France; UniCaen, UFR de médecine, 14000 Caen, France.

The endoscope and microscope can be used conjointly in certain sites, such as middle ear cholesteatoma or for resection of cerebellopontine angle tumours. Petrous apex tumours are classically accessed via a lateral otological approach, or, for the most anterior tumours, via an endonasal endoscopic approach. Surgical access via a lateral incision is limited inferiorly by the superior bulb of the internal jugular vein, medially by the labyrinth, facial nerve and internal auditory canal, superiorly by the dura mater, and laterally by the internal carotid artery. Read More

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http://dx.doi.org/10.1016/j.anorl.2018.06.002DOI Listing
December 2018
5 Reads

An Infratemporal Dermoid Cyst That Expanded the Foramen Ovale: A Case Report.

World Neurosurg 2018 Aug 1;116:305-308. Epub 2018 Jun 1.

Department of Neurosurgery, Faculty of Medicine, Fukuoka University, Fukuoka, Japan.

Background: Dermoid cysts are rare tumors usually seen in the midline structure of the brain but rarely arise in the petrous apex and cavernous sinus. There have been very few reports of dermoid cysts arising in the infratemporal fossa, with scarce anatomic descriptions. Here we report the case of a patient with a dermoid cyst in the left infratemporal fossa. Read More

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http://dx.doi.org/10.1016/j.wneu.2018.05.169DOI Listing
August 2018
45 Reads

[Experience of successful rescue from 5 cases of internal carotid artery injury during transnasal endoscopic skull base surgery].

Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018 Apr;53(4):251-256

Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of University of Science of Technology of China, Anhui Provincial Hospital, Hefei 230001, China.

To investigate the cause and urgent management of internal carotid artery injury during transnasal endoscopic skull base surgery. Five cases of internal carotid artery injury encountered during transnasal endoscopic skull base surgery in Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of University of Science of Technology of China, Anhui Provincial Hospital from December 2010 to July 2017 were analysed retrospectively. There were 2 cases of adenoid cystic carcinoma, 1 case of salivary gland-type adenocarcinoma, 1 case of petrous apex cholesterol granulomas and 1 case of squamous carcinoma. Read More

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http://dx.doi.org/10.3760/cma.j.issn.1673-0860.2018.04.003DOI Listing
April 2018
6 Reads

Microsurgical Resection of Glomus Jugulare Tumors With Facial Nerve Reconstruction: 3-Dimensional Operative Video.

Oper Neurosurg (Hagerstown) 2019 Jan;16(1):E1

Hospital Universitário Evangélico de Curitiba, Department of Neurosurgery, Curitiba, Paraná Brazil.

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. Read More

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http://dx.doi.org/10.1093/ons/opy100DOI Listing
January 2019
4 Reads

Trigeminal Neuralgia Secondary to Osteoid Osteoma of the Petrous Bone: Report of 4 Cases and Brief Review of Literature.

World Neurosurg 2018 Jun 16;114:e713-e718. Epub 2018 Mar 16.

Skull Base Surgery Center, Department of Neurosurgery, XuanWu Hospital, Capital Medical University, Beijing, China. Electronic address:

Objective: To retrospectively analyze clinical data of 4 patients with trigeminal neuralgia (TN) secondary to osteoid osteoma (OO) of the petrous bone and discuss treatment for this rare disease.

Methods: Between January 2008 and December 2016, 4 patients in whom TN secondary to petrous bone OO was diagnosed received surgical treatment in Xuan Wu Hospital of Capital Medical University. We summarized the characteristics and treatments of this rare disease through retrospective review of the clinical information, imaging features, surgical details, and follow-up outcomes of the 4 patients. Read More

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http://dx.doi.org/10.1016/j.wneu.2018.03.065DOI Listing
June 2018
27 Reads

Analysis of various tracts of mastoid air cells related to CSF leak after the anterior transpetrosal approach.

J Neurosurg 2018 03;130(2):360-367

1Department of Neurosurgery, Keio University School of Medicine, Tokyo.

Objective: The anterior transpetrosal approach (ATPA) was established in 1984 and has been particularly effective for petroclival tumors. Although some complications associated with this approach, such as venous hemorrhage in the temporal lobe and nervous disturbances, have been resolved over the years, the incidence rate of CSF leaks has not greatly improved. In this study, some varieties of air cell tracts that are strongly related to CSF leaks are demonstrated. Read More

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https://thejns.org/view/journals/j-neurosurg/aop/article-10.
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http://dx.doi.org/10.3171/2017.9.JNS171622DOI Listing
March 2018
15 Reads

Solid Variant of Aneurysmal Bone Cyst of the Temporal Bone.

Ann Otol Rhinol Laryngol 2018 Apr 13;127(4):285-290. Epub 2018 Feb 13.

2 Department of Otolaryngology-Head and Neck Surgery, University of California Irvine Medical Center, Orange, California, USA.

Objectives: Aneurysmal bone cysts (ABC) are benign, rapidly growing osteolytic lesions. Solid variant of ABC (SVABC) is a rare subtype of ABC that has not been reported in the temporal bone.

Methods: We report the case of a 6-year-old boy presenting with a slowly enlarging bony protuberance over the right zygomatic/malar eminence region. Read More

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http://dx.doi.org/10.1177/0003489418757251DOI Listing
April 2018
11 Reads

Factors of influence upon the SF-36-based health related quality of life of patients following surgery for petroclival and lateral posterior surface of pyramid meningiomas.

Clin Neurol Neurosurg 2018 03 31;166:36-43. Epub 2018 Jan 31.

Klinik und Poliklinik für Neurochirurgie, Universitätsklinikum Bonn, Sigmund-Freud-Str. 25, 53105 Bonn, Germany; Helios-Klinikum Meiningen, Bergstr. 3, 98617 Meiningen, Germany.

Objective: To describe the patient's self assessed health related quality of life (saHRQoL) based upon the medical outcome study 36-item short form health survey (SF-36) as well as the factors of influence upon the saHRQoL following surgery for petroclival (PCM) and lateral posterior surface of the pyramid (LPPM) meningiomas.

Patients And Methods: In a series of 78 patients operated consecutively for PCM (n = 46) or LPPM (n = 32) the preoperative, intraoperative and postoperative data were collected retrospectively. The saHRQoL was obtained by mailing the SF-36 questionnaire to the patients. Read More

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http://dx.doi.org/10.1016/j.clineuro.2018.01.016DOI Listing

Endoscopic endonasal transpterygoid approach to petrous pathologies: technique, limitations and alternative approaches.

J Neurosurg Sci 2018 Jun 10;62(3):339-346. Epub 2018 Jan 10.

Department of Neurosurgery, The University of Texas M.D. Anderson Cancer Center, Houston, TX, USA -

The endoscopic endonasal transpterygoid approach is a versatile technique, providing direct access to the petrous apex through an anterior surgical corridor. In this review we detail the transpterygoid approach to the petrous apex and highlight its relative indications. Although this approach is a useful strategy for many lesions of the petrous apex, disease extension into lateral, superior, or posterior compartments may limit extent of resection afforded by an anterior approach alone. Read More

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https://www.minervamedica.it/index2.php?show=R38Y2018N03A033
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http://dx.doi.org/10.23736/S0390-5616.18.04302-3DOI Listing
June 2018
12 Reads

Piezosurgery-A Safe Technique to Perform Lateral Suboccipital Craniotomy?

Oper Neurosurg (Hagerstown) 2018 12;15(6):664-671

Department of Neurosurgery, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Germany.

Background: Piezosurgery (PS) is a relatively new technique based on microvibrations generated by the piezoelectric effect. It selectively cuts bone tissue and preserves the surrounding soft tissue.

Objective: To evaluate the use of PS for performing lateral suboccipital craniotomy. Read More

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http://dx.doi.org/10.1093/ons/opx272DOI Listing
December 2018
3 Reads

Iatrogenic seeding of skull base chordoma following endoscopic endonasal surgery.

J Neurosurg 2018 10 22;129(4):947-953. Epub 2017 Dec 22.

Departments of1Neurological Surgery and.

Objective: Iatrogenic tumor seeding after open surgery for chordoma has been well described in the literature. The incidence and particularities related to endoscopic endonasal surgery (EES) have not been defined.

Methods: The authors retrospectively reviewed their experience with EES for clival chordoma, focusing on cases with iatrogenic seeding. Read More

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http://dx.doi.org/10.3171/2017.6.JNS17111DOI Listing
October 2018
20 Reads

Efficiency and Safety of Autologous Fat Grafts in Reconstructing Skull Base Defects After Resection of Skull Base Meningiomas.

World Neurosurg 2018 Feb 23;110:249-255. Epub 2017 Nov 23.

International Neuroscience Institute, Hannover, Germany.

Background: Reconstruction of the skull base after resection of skull base meningiomas is of paramount importance. Here we describe a safe and effective method of skull base reconstruction using autologous free fat grafts.

Methods: In this retrospective analysis of patients operated for skull base meningioma from 2007 to 2014. Read More

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http://dx.doi.org/10.1016/j.wneu.2017.11.084DOI Listing
February 2018
11 Reads

Retrosigmoid Intradural Suprameatal-Inframeatal Approach for Complete Surgical Removal of a Giant Recurrent Vestibular Schwannoma with Severe Petrous Bone Involvement: Technical Case Report.

World Neurosurg 2018 02 10;110:93-98. Epub 2017 Nov 10.

Department of Neurosurgery, International Neuroscience Institute, Hannover, Germany.

Background: Surgical removal of giant vestibular schwannomas with severe petrous bone involvement remains challenging due to the high risk of complications. The retrosigmoid intradural suprameatal-inframeatal approach (RISIA) allows for safe exposure extending from Meckel's cave to the petrous internal carotid artery (ICA).

Case Description: A 27-year-old man presented with recurrence of a giant vestibular schwannoma (4. Read More

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http://dx.doi.org/10.1016/j.wneu.2017.10.176DOI Listing
February 2018
25 Reads

Combined petrosal approach for petroclival meningioma.

Neurosurg Focus 2017 Oct;43(VideoSuppl2):V6

Department of Neurological Surgery, Brigham and Women's Hospital, Harvard School of Medicine, Boston, Massachusetts.

The authors present the case of a 56-year-old patient who presented with a large petroclival meningioma and clinical symptoms of brainstem compression and hydrocephalus. The authors describe a two-stage combined petrosal approach for complete resection of the tumor. The nuances of the approach and microsurgical technique are discussed, as well as the radiographic and clinical outcomes. Read More

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http://dx.doi.org/10.3171/2017.10.FocusVid.17343DOI Listing
October 2017
5 Reads