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Mak YH, Ho G. Multicompartmental cystic trigeminal schwannoma as an uncommon differential diagnosis of cerebellopontine angle tumors. Radiol Case Rep 2024; 19:2552-2557. [PMID: 38596177 PMCID: PMC11001620 DOI: 10.1016/j.radcr.2024.03.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Revised: 02/29/2024] [Accepted: 03/06/2024] [Indexed: 04/11/2024] Open
Abstract
Trigeminal schwannoma is the second most common intracranial schwannoma yet accounts for less than 0.5% intracranial tumors [1]. Cystic degeneration is uncommon. We would like to report a pathologically proven multicompartmental cystic trigeminal schwannoma in a young adult presenting with chronic headache. A literature review on the imaging features of trigeminal schwannoma is performed to assist radiologists in accurate disease localization and prioritizing differential diagnosis in challenging cases. Confident preoperative radiological diagnosis would directly affect management strategies.
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Affiliation(s)
- Yuen Hei Mak
- Department of Radiology, Queen Mary Hospital, Hong Kong SAR, China, 102 Pokfulam Road, Hong Kong SAR, China
| | - Grace Ho
- Department of Radiology, Queen Mary Hospital, Hong Kong SAR, China, 102 Pokfulam Road, Hong Kong SAR, China
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Findlay MC, Bounajem MT, Mortimer V, Budohoski KP, Rennert RC, Couldwell WT. Preservation of cranial nerve function in large and giant trigeminal schwannoma resection: a case series. Acta Neurochir (Wien) 2024; 166:198. [PMID: 38684564 DOI: 10.1007/s00701-024-06094-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 04/13/2024] [Indexed: 05/02/2024]
Abstract
BACKGROUND Trigeminal schwannomas (TSs) are intracranial tumors that can cause significant brainstem compression. TS resection can be challenging because of the risk of new neurologic and cranial nerve deficits, especially with large (≥ 3 cm) or giant (≥ 4 cm) TSs. As prior surgical series include TSs of all sizes, we herein present our clinical experience treating large and giant TSs via microsurgical resection. METHODS This was a retrospective, single-surgeon case series of adult patients with large or giant TSs treated with microsurgery in 2012-2023. RESULTS Seven patients underwent microsurgical resection for TSs (1 large, 6 giant; 4 males; mean age 39 ± 14 years). Tumors were classified as type M (middle fossa in the interdural space; 1 case, 14%), type ME (middle fossa with extracranial extension; 3 cases, 43%), type MP (middle and posterior fossae; 2 cases, 29%), or type MPE (middle/posterior fossae and extracranial space; 1 case, 14%). Six patients were treated with a frontotemporal approach (combined with transmastoid craniotomy in the same sitting in one patient and a delayed transmaxillary approach in another), and one patient was treated using an orbitofrontotemporal approach. Gross total resection was achieved in 5 cases (2 near-total resections). Five patients had preoperative facial numbness, and 6 had immediate postoperative facial numbness, including two with worsened or new symptoms. Two patients (28%) demonstrated new non-trigeminal cranial nerve deficits over mean follow-up of 22 months. Overall, 80% of patients with preoperative facial numbness and 83% with facial numbness at any point experienced improvement or resolution during their postoperative course. All patients with preoperative or new postoperative non-trigeminal tumor-related cranial nerve deficits (4/4) experienced improvement or resolution on follow-up. One patient experienced tumor recurrence that has been managed conservatively. CONCLUSIONS Microsurgical resection of large or giant TSs can be performed with low morbidity and excellent long-term cranial nerve function.
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Affiliation(s)
- Matthew C Findlay
- Department of Neurosurgery, Clinical Neurosciences Center, University of Utah, 175 North Medical Drive East, Salt Lake City, UT, 84132, USA
| | - Michael T Bounajem
- Department of Neurosurgery, Clinical Neurosciences Center, University of Utah, 175 North Medical Drive East, Salt Lake City, UT, 84132, USA
| | - Vance Mortimer
- Department of Neurosurgery, Clinical Neurosciences Center, University of Utah, 175 North Medical Drive East, Salt Lake City, UT, 84132, USA
| | - Karol P Budohoski
- Department of Neurosurgery, Clinical Neurosciences Center, University of Utah, 175 North Medical Drive East, Salt Lake City, UT, 84132, USA
| | - Robert C Rennert
- Department of Neurosurgery, Clinical Neurosciences Center, University of Utah, 175 North Medical Drive East, Salt Lake City, UT, 84132, USA
| | - William T Couldwell
- Department of Neurosurgery, Clinical Neurosciences Center, University of Utah, 175 North Medical Drive East, Salt Lake City, UT, 84132, USA.
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Niranjan A, Faramand A, Raju SS, Lee CC, Yang HC, Nabeel AM, Tawadros SR, El-Shehaby AMN, Abdelkarim K, Emad RM, Reda WA, Álvarez RM, Moreno NEM, Liscak R, May J, Mathieu D, Langlois AM, Snyder MH, Shepard MJ, Sheehan J, Muhsen BA, Borghei-Razavi H, Barnett G, Kondziolka D, Golfinos JG, Attuati L, Picozzi P, McInerney J, Daggubati LC, Warnick RE, Feliciano CE, Carro E, McCarthy D, Starke RM, Landy HJ, Cifarelli CP, Vargo JA, Flickinger J, Lunsford LD. Clinical and Imaging Outcomes After Trigeminal Schwannoma Radiosurgery: Results From a Multicenter, International Cohort Study. Neurosurgery 2024; 94:165-173. [PMID: 37523519 DOI: 10.1227/neu.0000000000002623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 05/19/2023] [Indexed: 08/02/2023] Open
Abstract
BACKGROUND AND OBJECTIVES An international, multicenter, retrospective study was conducted to evaluate the long-term clinical outcomes and tumor control rates after stereotactic radiosurgery (SRS) for trigeminal schwannoma. METHODS Patient data (N = 309) were collected from 14 international radiosurgery centers. The median patient age was 50 years (range 11-87 years). Sixty patients (19%) had prior resections. Abnormal facial sensation was the commonest complaint (49%). The anatomic locations were root (N = 40), ganglion (N = 141), or dumbbell type (N = 128). The median tumor volume was 4 cc (range, 0.2-30.1 cc), and median margin dose was 13 Gy (range, 10-20 Gy). Factors associated with tumor control, symptom improvement, and adverse radiation events were assessed. RESULTS The median and mean time to last follow-up was 49 and 65 months (range 6-242 months). Greater than 5-year follow-up was available for 139 patients (45%), and 50 patients (16%) had longer than 10-year follow-up. The overall tumor control rate was 94.5%. Tumors regressed in 146 patients (47.2%), remained unchanged in 128 patients (41.4%), and stabilized after initial expansion in 20 patients (6.5%). Progression-free survival rates at 3 years, 5 years, and 10 years were 91%, 86%, and 80 %. Smaller tumor volume (less than 8 cc) was associated with significantly better progression-free survival ( P = .02). Seventeen patients with sustained growth underwent further intervention at a median of 27 months (3-144 months). Symptom improvement was noted in 140 patients (45%) at a median of 7 months. In multivariate analysis primary, SRS ( P = .003) and smaller tumor volume ( P = .01) were associated with better symptom improvement. Adverse radiation events were documented in 29 patients (9%). CONCLUSION SRS was associated with long-term freedom (10 year) from additional management in 80% of patients. SRS proved to be a valuable salvage option after resection. When used as a primary management for smaller volume tumors, both clinical improvement and prevention of new deficits were optimized.
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Affiliation(s)
- Ajay Niranjan
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh , Pennsylvania , USA
| | - Andrew Faramand
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh , Pennsylvania , USA
| | - Sudesh S Raju
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh , Pennsylvania , USA
| | - Cheng-Chia Lee
- Department of Neurosurgery, Neurological Institute, Taipei Veteran General Hospital, Taipei , Taiwan
| | - Huai-Che Yang
- Department of Neurosurgery, Neurological Institute, Taipei Veteran General Hospital, Taipei , Taiwan
| | - Ahmed M Nabeel
- Gamma Knife Center Cairo, Cairo , Egypt
- Neurosurgery Department, Faculty of Medicine, Benha University, Qalubya , Egypt
| | - Sameh R Tawadros
- Gamma Knife Center Cairo, Cairo , Egypt
- Neurosurgery Department, Faculty of Medicine, Ain Shams University, Cairo , Egypt
| | - Amr M N El-Shehaby
- Gamma Knife Center Cairo, Cairo , Egypt
- Neurosurgery Department, Faculty of Medicine, Ain Shams University, Cairo , Egypt
| | - Khaled Abdelkarim
- Gamma Knife Center Cairo, Cairo , Egypt
- Clinical Oncology Department, Faculty of Medicine, Ain Shams University, Cairo , Egypt
| | - Reem M Emad
- Gamma Knife Center Cairo, Cairo , Egypt
- Radiation Oncology Department, National Cancer Institute, Cairo University, Cairo , Egypt
| | - Wael A Reda
- Gamma Knife Center Cairo, Cairo , Egypt
- Neurosurgery Department, Faculty of Medicine, Ain Shams University, Cairo , Egypt
| | | | | | - Roman Liscak
- Department of Stereotactic and Radiation Neurosurgery, Na Homolce Hospital, Prague , Czech Republic
| | - Jaromir May
- Department of Stereotactic and Radiation Neurosurgery, Na Homolce Hospital, Prague , Czech Republic
| | - David Mathieu
- Department of Neurosurgery, Université de Sherbrooke, Centre de recherche du CHUS, Sherbrooke , Québec , Canada
| | - Anne-Marie Langlois
- Department of Neurosurgery, Université de Sherbrooke, Centre de recherche du CHUS, Sherbrooke , Québec , Canada
| | - M Harrison Snyder
- Department of Neurologic Surgery, University of Virginia Health System, Charlottesville , Virginia , USA
| | - Matthew J Shepard
- Department of Neurosurgery, Allegheny Health Network, Pittsburgh , Pennsylvania , USA
| | - Jason Sheehan
- Department of Neurologic Surgery, University of Virginia Health System, Charlottesville , Virginia , USA
| | - Baha'eddin A Muhsen
- Department of Neurologic Surgery, Cleveland Clinic Foundation, Cleveland , Ohio , USA
| | - Hamid Borghei-Razavi
- Department of Neurologic Surgery, Cleveland Clinic Foundation, Cleveland , Ohio , USA
| | - Gene Barnett
- Department of Neurologic Surgery, Cleveland Clinic Foundation, Cleveland , Ohio , USA
| | - Douglas Kondziolka
- Departments of Neurosurgery and Medical Physics, NYU Langone Health System, New York , New York , USA
| | - John G Golfinos
- Departments of Neurosurgery and Medical Physics, NYU Langone Health System, New York , New York , USA
| | - Luca Attuati
- Department of Neurosurgery, Gamma Knife Humanitas Research Hospital, Milan , Italy
| | - Piero Picozzi
- Department of Neurosurgery, Gamma Knife Humanitas Research Hospital, Milan , Italy
| | - James McInerney
- Department of Neurosurgery, Penn State Hershey Medical Center, Hershey , Pennsylvania , USA
| | - Lekhaj Chand Daggubati
- Department of Neurosurgery, Penn State Hershey Medical Center, Hershey , Pennsylvania , USA
| | - Ronald E Warnick
- Department of Neurosurgery, Gamma Knife Center, Jewish Hospital, Mayfield Clinic, Cincinnati , Ohio , USA
| | - Caleb E Feliciano
- Department of Neurosurgery, Gamma Knife Center of Puerto Rico, San Juan , Puerto Rico
| | - Eric Carro
- Department of Neurosurgery, Gamma Knife Center of Puerto Rico, San Juan , Puerto Rico
| | - David McCarthy
- Department of Neurologic Surgery, University of Miami, Coral Gables , Florida , USA
| | - Robert M Starke
- Department of Neurologic Surgery, University of Miami, Coral Gables , Florida , USA
| | - Howard J Landy
- Department of Neurologic Surgery, University of Miami, Coral Gables , Florida , USA
| | - Christopher P Cifarelli
- Department of Neurologic Surgery, West Virginia University, Morgantown , West Virginia , USA
| | - John A Vargo
- Department of Neurologic Surgery, West Virginia University, Morgantown , West Virginia , USA
| | - John Flickinger
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh , Pennsylvania , USA
| | - L Dade Lunsford
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh , Pennsylvania , USA
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Chen P, Yan C, Xie T, Li C, Liu T, Yang Q, Liu S, Wu S, Yeh Y, Zhang X. Endoscopic far-lateral supracerebellar infratentorial approach for resection of dumbbell-shaped trigeminal schwannoma: surgical techniques and preliminary results. Acta Neurochir (Wien) 2023; 165:2913-2921. [PMID: 37523075 DOI: 10.1007/s00701-023-05725-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 07/07/2023] [Indexed: 08/01/2023]
Abstract
BACKGROUND Trigeminal schwannomas (TSs) are mostly benign tumors. However, dumbbell-shaped TSs are most challenging for surgeons and pose a high surgical risk. OBJECTIVE We describe the technique of the purely endoscopic far-lateral supracerebellar infratentorial approach (EFL-SCITA) for removing dumbbell-shaped TSs and further discuss the feasibility of this approach and our experience. METHODS EFL-SCITA was performed for resection of 5 TSs between January 2020 and March 2023. The entire procedure was performed endoscopically with the goal of total tumor resection. During the operation, the tumor was exposed in close proximity and multiple angles under the endoscope, and the peri-tumor nerves were carefully identified and protected, especially the normal trigeminal fiber bundles around the tumor. RESULTS All the tumors of 5 patients involved the middle and posterior cranial fossa, of which total removal was achieved in 2 patients and near-total removal in 3 patients. The most common preoperative symptoms were relieved after surgery. Two patients had postoperative mild facial paralysis (House-Brackmann grade II), and 1 patient had abducens palsy; both recovered during the follow-up period. Two patients experienced new postoperative facial hypesthesia, and 1 experienced mastication weakness, which did not recover. There was no tumor recurrence or residual tumor growth during the follow-up period in any of the patients. CONCLUSION EFL-SCITA is a new and effective alternative for the surgical treatment of TSs. For dumbbell-shaped TSs, this approach provides sufficient surgical field exposure and freedom of operation.
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Affiliation(s)
- Pin Chen
- Department of Neurosurgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Chaolong Yan
- Department of Neurosurgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Tao Xie
- Department of Neurosurgery, Zhongshan Hospital, Fudan University, Shanghai, China
- Cancer Center, Shanghai Zhongshan Hospital, Fudan University, Shanghai, China
| | - Chen Li
- Department of Neurosurgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Tengfei Liu
- Department of Neurosurgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Qiaoqiao Yang
- Department of Neurosurgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Shuang Liu
- Department of Neurosurgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Silin Wu
- Department of Neurosurgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yuyang Yeh
- Department of Neurosurgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xiaobiao Zhang
- Department of Neurosurgery, Zhongshan Hospital, Fudan University, Shanghai, China.
- Cancer Center, Shanghai Zhongshan Hospital, Fudan University, Shanghai, China.
- Digital Medical Research Center, Fudan University, Shanghai, China.
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Manogaran RS, Arora K, Muraleedharan M, Kumar P, Aleesha M, Virk RS. Endonasal Endoscopic Trans-pterygoid Approach for Modified Jeffersons Type D V3 Schwannoma. Neurol India 2023; 71:888-892. [PMID: 37929422 DOI: 10.4103/0028-3886.388053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Affiliation(s)
- Ravi Sankar Manogaran
- Neuro Otology Unit, Department of Neurosurgery, C-Block, SGPGIMS, Raebareli Road, Lucknow, Uttar Pradesh, India
| | - Kanika Arora
- Neuro Otology Unit, Department of Neurosurgery, C-Block, SGPGIMS, Raebareli Road, Lucknow, Uttar Pradesh, India
| | - Manjul Muraleedharan
- Neuro Otology Unit, Department of Neurosurgery, C-Block, SGPGIMS, Raebareli Road, Lucknow, Uttar Pradesh, India
| | - Prince Kumar
- Department of Otolaryngology, Head and Neck Surgery, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - M Aleesha
- Department of Otolaryngology, Head and Neck Surgery, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Ramandeep Singh Virk
- Department of Otolaryngology, Head and Neck Surgery, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
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Karras CL, Texakalidis P, Thirunavu VM, Nandoliya KR, Khazanchi R, Byrne K, Chandler JP, Magill ST. Outcomes following surgical resection of trigeminal schwannomas: a systematic review and meta-analysis. Neurosurg Rev 2023; 46:215. [PMID: 37646878 DOI: 10.1007/s10143-023-02121-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 08/05/2023] [Accepted: 08/15/2023] [Indexed: 09/01/2023]
Abstract
Although typically benign, trigeminal schwannomas (TS) may require surgical resection when large or symptomatic and can cause significant morbidity. This study aims to summarize the literature and synthesize outcomes following surgical resection of TS. A systematic review was performed according to PRISMA guidelines. Data extracted included patient and tumor characteristics, surgical approaches, and postoperative outcomes. Odds ratios (OR) with corresponding 95% confidence intervals (CI) were used for outcome analysis. The initial search yielded 1838 results, of which 26 studies with 974 patients undergoing surgical resection of TS were included. The mean age was 42.9 years and 58.0% were female. The mean tumor diameter was 4.7 cm, with Samii type A, B, C, and D tumors corresponding to 33.4%, 15.8%, 37.2%, and 13.6%, respectively. Over a mean symptom duration of 29 months, patients presented with trigeminal hypesthesia (58.7%), headache (32.8%), trigeminal motor weakness (22.8%), facial pain (21.3%), ataxia (19.4%), diplopia (18.7%), and visual impairment (12.0%). Surgical approaches included supratentorial (61.4%), infratentorial (15.0%), endoscopic (8.6%), combined/staged (5.3%), and anterior (5.7%) or posterior (4.0%) petrosectomy. Postoperative improvement of facial pain (83.9%) was significantly greater than trigeminal motor weakness (33.0%) or hypesthesia (29.4%). The extent of resection (EOR) was reported as gross total (GTR), near total, and subtotal in 77.7%, 7.7%, and 14.6% of cases, respectively. Over a mean follow-up time of 62.6 months, recurrence/progression was noted in 7.4% of patients at a mean time to recurrence of 44.9 months. Patients with GTR had statistically significantly lower odds of recurrence/progression (OR: 0.07; 95% CI: 0.04-0.15) compared to patients with non-GTR. This systematic review and meta-analysis report patient outcomes following surgical resection of TS. EOR was found to be an important predictor of the risk of recurrence. Facial pain was more likely to improve postoperatively than facial hypesthesia. This work reports baseline rates of post-operative complications across studies, establishing benchmarks for neurosurgeons innovating and working to improve surgical outcomes for TS patients.
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Affiliation(s)
| | - Pavlos Texakalidis
- Department of Neurological Surgery, Northwestern University, Chicago, IL, USA
| | | | | | - Rushmin Khazanchi
- Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Kayla Byrne
- Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - James P Chandler
- Department of Neurological Surgery, Northwestern University, Chicago, IL, USA
| | - Stephen T Magill
- Department of Neurological Surgery, Northwestern University, Chicago, IL, USA
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Shibao S, Yoshida K. Simplified anterior transpetrosal approach without superior petrosal sinus and tentorial incision for lesions centered in Meckel's cave. Acta Neurochir (Wien) 2023:10.1007/s00701-023-05584-9. [PMID: 37099067 DOI: 10.1007/s00701-023-05584-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 03/08/2023] [Indexed: 04/27/2023]
Abstract
OBJECTIVE The anterior transpetrosal approach (ATPA) is an effective method to reach lesions in the petroclival region. This approach involves many steps, including superior petrosal sinus (SPS) ligation and tentorial cutting. It is sometimes unnecessary to perform all procedures in the ATPA for certain lesions, especially those centered in the Meckel's cave. Here, we present a simplified anterior transpetrosal approach (SATPA) without superior petrosal sinus and tentorial incision for lesions centered in the Meckel's cave as a modified ATPA. METHODS This study included 13 patients treated with SATPA. The initial steps of SATPA are similar to ATPA, excluding a middle cranial fossa dural incision, SPS dissection, or tentorial incision. Histological examination was performed to understand the membrane structure of the trigeminal nerve, which runs through the Meckel's cave. RESULTS Pathology revealed trigeminal schwannoma (n=11), extraventricular central neurocytoma (n=1), and a metastatic tumor (n=1). The average tumor size was 2.4 cm. The total removal rate was 76.9% (10/13). Permanent complications included trigeminal neuropathy in four cases and cerebrospinal fluid leakage in one case. Histological examination revealed the trigeminal nerve traverses the subarachnoid space from the posterior fossa subdural space to the Meckel's cave and is covered with the epineurium in the inner reticular layer. CONCLUSIONS We used SATPA for lesions located in the Meckel's cave identified using histological examination. This approach may be considered for small- to medium-sized lesions centered in the Meckel space. CLINICAL TRIAL REGISTRATION NUMBER None.
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Affiliation(s)
- Shunsuke Shibao
- Department of Neurosurgery, Ashikaga Red Cross Hospital, 284-1 Yobe-cho, Ashikaga, Tochigi, 326-0843, Japan.
- Department of Neurosurgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan.
| | - Kazunari Yoshida
- Department of Neurosurgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
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Mahjoub Y, Wan M, Subramaniam S. Pearls & Oy-sters: Trigeminal Cystic Schwannoma Presenting With Foster Kennedy Syndrome, Sixth Nerve Palsy, and Focal Seizures. Neurology 2023; 100:587-590. [PMID: 36535773 PMCID: PMC10033161 DOI: 10.1212/wnl.0000000000201700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 11/01/2022] [Indexed: 12/23/2022] Open
Abstract
Foster Kennedy syndrome refers to a finding of optic atrophy in one eye from direct compression of the optic nerve by a mass lesion and contralateral papilledema in the nonatrophic optic nerve caused by an increased intracranial pressure. When the fundoscopy finding is not due to a direct compressive mass, the term pseudo-Foster Kennedy syndrome is used; this can be caused by any process or processes that result in optic atrophy in one eye and optic disc edema in the other. Identifying Foster Kennedy syndrome in a patient calls for expedient neuroimaging looking for an intracranial mass lesion. In this article, we present the case of a patient presenting with vision loss and Foster Kennedy syndrome who was found to have a large trigeminal cystic schwannoma. While several other accompanying symptoms were not evident from the patient complaint, a careful history and physical examination revealed additional localizing clues: unilateral sensory changes in the face and pterygoid and masseter atrophy, unilateral cranial nerve VI palsy, and episodes of intense déjà vu sensation, which were presumed to represent temporal lobe-onset focal aware seizures. Trigeminal schwannomas are a rare entity, and they are even more rarely cystic. This case highlights an unusual scenario where a slow expansion of the tumor ultimately resulted in vision loss and presentation of the patient to medical attention.
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Affiliation(s)
- Yasamin Mahjoub
- From the Department of Clinical Neurosciences (Y.M., M.W., S.S.), University of Calgary; and Department of Surgery (S.S.), University of Calgary, Canada.
| | - Miranda Wan
- From the Department of Clinical Neurosciences (Y.M., M.W., S.S.), University of Calgary; and Department of Surgery (S.S.), University of Calgary, Canada
| | - Suresh Subramaniam
- From the Department of Clinical Neurosciences (Y.M., M.W., S.S.), University of Calgary; and Department of Surgery (S.S.), University of Calgary, Canada
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Shapira Y, Juniat V, Dave T, Hussain A, McNeely D, Watanabe A, Yoneda A, Saeed P, Woo KI, Hardy TG, Price B, Drummond K, Selva D. Orbito-cranial schwannoma-a multicentre experience. Eye (Lond) 2023; 37:48-53. [PMID: 34999720 PMCID: PMC9829917 DOI: 10.1038/s41433-021-01850-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 10/10/2021] [Accepted: 11/08/2021] [Indexed: 01/17/2023] Open
Abstract
OBJECTIVES To describe the features, management approaches, and outcomes of orbito-cranial schwannomas. METHODS Retrospective review of ten patients with orbito-cranial schwannomas managed in six orbital services over 22 years. Data collected included demographics, presenting features, neuroimaging characteristics, histology, management approach, complications, and outcomes. RESULTS Mean age of the patients was 41.4 ± 19.9 years, and 6 (60%) were females. The majority presented with proptosis (90%), limited extraocular motility (80%), eyelid swelling (60%), and optic neuropathy (60%). Most lesions (80%) involved the entire anterior-posterior span of the orbit, with both intra- and extraconal involvement. All tumours involved the orbital apex, the superior orbital fissure, and extended at least to the cavernous sinus. Surgical resection was performed for all. Seven (70%) of the tumours were completely or subtotally resected combining an intracapsular approach by an orbital-neurosurgical collaboration, with no recurrence on postoperative follow-up (6-186 months). Three underwent tumour debulking. Of these, two remained stable on follow-up (6-34 months) and one showed progression of the residual tumour over 9 years (cellular schwannoma on histology) necessitating stereotactic radiotherapy (SRT) for local control. Adjuncts to the orbito-cranial resection included perioperative frozen section (n = 5), endoscopic transorbital approach (n = 2), and image-guided navigation (n = 1). Post-surgical adjuvant SRT was used in three subjects. CONCLUSIONS These results highlight the possibility of successful surgical control in complex orbito-cranial schwannomas. A combined neurosurgical/orbital approach with consideration of an intracapsular resection is recommended. Recurrence may not occur with subtotal excision and observation may be reasonable. Adjunctive SRT for progression or residual tumour can be considered.
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Affiliation(s)
- Yinon Shapira
- Discipline of Ophthalmology and Visual Science, University of Adelaide, Adelaide, SA, Australia.
- Department of Ophthalmology, Royal Adelaide Hospital and South Australian Institute of Ophthalmology, Adelaide, SA, Australia.
| | - Valerie Juniat
- Discipline of Ophthalmology and Visual Science, University of Adelaide, Adelaide, SA, Australia
- Department of Ophthalmology, Royal Adelaide Hospital and South Australian Institute of Ophthalmology, Adelaide, SA, Australia
| | - Tarjani Dave
- Ophthalmic Plastic Surgery Service, L V Prasad Eye Institute, KAR Campus, Hyderabad, Telangana, India
| | - Ahsen Hussain
- Department of Ophthalmology & Visual Sciences, Dalhousie University, Halifax, NS, Canada
| | - Daniel McNeely
- Division of Neurosurgery, Department of Surgery, Dalhousie University, Halifax, NS, Canada
| | - Akihide Watanabe
- Department of Ophthalmology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Akiko Yoneda
- Department of Ophthalmology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Peerooz Saeed
- Departments of Ophthalmology, Orbital Center, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Kyung In Woo
- Department of Ophthalmology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Thomas G Hardy
- Department of Ophthalmology, Royal Victorian Eye & Ear Hospital, East Melbourne, VIC, Australia
- Department of Surgery, Royal Melbourne Hospital, University of Melbourne, Parkville, VIC, Australia
| | - Benjamin Price
- Department of Neurosurgery, Royal Melbourne Hospital, Parkville, VIC, Australia
| | - Kate Drummond
- Department of Surgery, Royal Melbourne Hospital, University of Melbourne, Parkville, VIC, Australia
- Department of Neurosurgery, Royal Melbourne Hospital, Parkville, VIC, Australia
| | - Dinesh Selva
- Discipline of Ophthalmology and Visual Science, University of Adelaide, Adelaide, SA, Australia
- Department of Ophthalmology, Royal Adelaide Hospital and South Australian Institute of Ophthalmology, Adelaide, SA, Australia
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10
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Bezborodova TY, Zolotova SV. [Trigeminal neuromas: modern diagnosis and treatment]. ZHURNAL VOPROSY NEIROKHIRURGII IMENI N. N. BURDENKO 2023; 87:104-110. [PMID: 36763561 DOI: 10.17116/neiro202387011104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
Trigeminal neuroma (TN) is a benign neoplasm arising from trigeminal nerve sheath. The tumor can grow from any part of the nerve from the root in posterior cranial fossa to peripheral extracranial branches. Symptoms of trigeminal neuroma are variable and usually depend on location and dimensions of tumor. We present a review devoted to the problem of TN. Surgery was the only possible option in patients with TN for a long time. However, radiotherapy became one of the options and sometimes alternative to surgical treatment since the late 1980s. Besides active management of patients with TN, follow-up with regular radiographic control of small asymptomatic tumors also seems to be reasonable. When evaluating treatment outcomes, physicians consider quality of life and return to previous work and activity in addition to resection quality, neurological impairment, relapse-free period and tumor growth control. However, assessment of these indicators after certain treatment is rare. Thus, it is difficult to determine treatment strategy with maximum ratio of effectiveness and quality of life. Therefore, optimization of TN treatment is currently an urgent problem that requires further study.
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11
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Bal J, Bruneau M, Berhouma M, Cornelius JF, Cavallo LM, Daniel RT, Froelich S, Jouanneau E, Meling TR, Messerer M, Roche PH, Schroeder HWS, Tatagiba M, Zazpe I, Paraskevopoulos D. Management of non-vestibular schwannomas in adult patients: a systematic review and consensus statement on behalf of the EANS skull base section Part II: Trigeminal and facial nerve schwannomas (CN V, VII). Acta Neurochir (Wien) 2022; 164:299-319. [PMID: 35079891 DOI: 10.1007/s00701-021-05092-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 12/17/2021] [Indexed: 12/12/2022]
Abstract
BACKGROUND Non-vestibular schwannomas are relatively rare, with trigeminal and jugular foramen schwannomas being the most common. This is a heterogenous group which requires detailed investigation and careful consideration to management strategy. The optimal management for these tumours remains unclear and there are several controversies. The aim of this paper is to provide insight into the main principles defining management and surgical strategy, in order to formulate a series of recommendations. METHODS A task force was created by the EANS skull base section committee along with its members and other renowned experts in the field to generate recommendations for the surgical management of these tumours on a European perspective. To achieve this, the task force performed an extensive systematic review in this field and had discussions within the group. This article is the second of a three-part series describing non-vestibular schwannomas (V, VII). RESULTS A summary of literature evidence was proposed after discussion within the EANS skull base section. The constituted task force dealt with the practice patterns that exist with respect to pre-operative radiological investigations, ophthalmological assessments, optimal surgical and radiotherapy strategies, and follow-up management. CONCLUSION This article represents the consensually derived opinion of the task force with respect to the treatment of trigeminal and facial schwannoma. The aim of treatment is maximal safe resection with preservation of function. Careful thought is required to select the appropriate surgical approach. Most middle fossa trigeminal schwannoma tumours can be safely accessed by a subtemporal extradural middle fossa approach. The treatment of facial nerve schwannoma remains controversial.
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Affiliation(s)
- Jarnail Bal
- Department of Neurosurgery, Barts Health NHS Trust, St. Bartholomew's and The Royal London Hospital, London, UK
| | - Michael Bruneau
- Department of Neurosurgery, Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (UZ Brussel), Laarbeeklaan 101, 1090, Brussels, Belgium
| | - Moncef Berhouma
- Neuro-Oncologic and Vascular Department, Hôpital Neurologique Pierre Wertheimer, Lyon, France
| | - Jan F Cornelius
- Department of Neurosurgery, Medical Faculty, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
| | - Luigi M Cavallo
- Department of Neurosurgery, University Hospital of Naples Federico II, Napoli, Italy
| | - Roy T Daniel
- Department of Neurosurgery, Lausanne University Hospital and University of Lausanne, 42 rue du Bugnon, 1011, Lausanne, Switzerland
| | | | - Emmanuel Jouanneau
- Department of Neurosurgery, Hôpital Neurologique Pierre Wertheimer, Lyon, France
| | - Torstein R Meling
- Department of Neurosurgery, University Hospital of Geneva, Geneva, Switzerland
| | - Mahmoud Messerer
- Department of Neurosurgery, Lausanne University Hospital and University of Lausanne, 42 rue du Bugnon, 1011, Lausanne, Switzerland
| | | | - Henry W S Schroeder
- Department of Neurosurgery, University Medicine Greifswald, Greifswald, Germany
| | - Marcos Tatagiba
- Department of Neurosurgery, Eberhard Karls University of Tübingen, Tübingen, Germany
| | - Idoya Zazpe
- Department of Neurosurgery, Complejo Hospitalario de Navarra, Pamplona, Spain
| | - Dimitrios Paraskevopoulos
- Department of Neurosurgery, Barts Health NHS Trust, St. Bartholomew's and The Royal London Hospital, London, UK.
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12
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Petrous bone lesions: surgical implementation and outcomes of extradural subtemporal approach. Acta Neurochir (Wien) 2021; 163:2881-2894. [PMID: 34420107 DOI: 10.1007/s00701-021-04962-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 07/31/2021] [Indexed: 12/17/2022]
Abstract
BACKGROUND Petrous bone lesions (PBLs) are rare with few reports in the neurosurgical literature. In this study, the authors describe our current technique of extradural subtemporal approach (ESTA). The objective of this study was to evaluate the role and efficacy of ESTA for treatment of the PBLs. To our knowledge, this is the largest reported clinical series of using an ESTA-treated PBLs in which the clinical outcomes were evaluated. METHODS Between 1994 and 2019, 67 patients with PBLs treated by ESTA were retrospectively reviewed. Extent of resection, neurological outcomes, recurrence rate, and surgical complications were evaluated and compared with previous studies. The indications, advantages, limitations, and outcomes of ESTA were analyzed according to pathology. RESULTS This series included 7 facial nerve schwannomas (10.4%), 16 cholesterol granulomas (23.9%), 16 chordomas (23.9%), 6 chondrosarcomas (9%), 5 trigeminal schwannomas (7.5%), 9 epidermoids/dermoids (13.4%), and 8 other pathologies (11.9%). The most common location of PBLs operated with ESTA was at the petrous apex and rhomboid areas (68.7%). Gross total resection was achieved in 35 (55.6%). Symptomatic improvement occurred in 56 patients (83.6%). Complications occurred in 7 (10.4%) of cases including one mortality. Nine patients (17%) had recurrence within the mean follow-up 71 months. Compared to previous literature, our results demonstrated comparable outcomes but with higher rates of hearing and facial nerve preservation as well as minimal morbidity. From our results, ESTA is an effective therapeutic option for lesions located at the rhomboid and petrous apex, particularly when patients presented with intact facial and hearing function. CONCLUSION Our series demonstrated that ESTA provided satisfactory outcomes with excellent benefits of hearing and facial function preservation for patients with petrous bone lesions. ESTA should be considered as a safe and effective therapeutic option for selected patients with PBLs.
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13
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Bawornvaraporn U, Zomorodi AR, Friedman AH, Fukushima T. Neurosurgical management of petrous bone lesions: classification system and selection of surgical approaches. Acta Neurochir (Wien) 2021; 163:2895-2907. [PMID: 34313854 DOI: 10.1007/s00701-021-04934-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 06/29/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND Surgery of petrous bone lesions (PBLs) is challenging for neurosurgeons. Selection of the surgical approach is an important key for success. In this study, the authors present an anatomical classification for PBLs that has been used by our group for over the past 26 years. The objective of this study is to investigate the benefits and applicability of this classification. METHODS Between 1994 and 2019, 117 patients treated for PBLs were retrospectively reviewed. Using the V3 and arcuate eminence as reference points, the petrous bone is segmented into 3 parts: petrous apex, rhomboid, and posterior. The pathological diagnoses, selection of the operative approach, and the extent of resection (EOR) were analyzed and correlated using this classification. RESULTS This series included 22 facial nerve schwannomas (18.8%), 22 cholesterol granulomas (18.8%), 39 chordomas/chondrosarcomas (33.3%), 6 trigeminal schwannomas (5.1%), 13 epidermoids/dermoids (11.1%), and 15 other pathologies (12.8%). PBLs were most often involved with the petrous apex and rhomboid areas (46.2%). The extradural subtemporal approach (ESTA) was most frequently used (57.3%). Gross total resection was achieved in 58.4%. Symptomatic improvement occurred in 92 patients (78.6%). Our results demonstrated a correlation between this classification with each type of pathology (p < .001), selection of surgical approaches (p < 0.001), and EOR (p = 0.008). Chordoma/chondrosarcoma, redo operations, and lesions located medially were less likely to have total resection. Temporary complications occurred in 8 cases (6.8%), persistent morbidity in 5 cases (4.3%), and mortality in 1 case. CONCLUSION In this study, we proposed a simple classification of PBLs. Using landmarks on the superior petrosal surface, the petrous bone is divided into 3 parts, apex, rhomboid, and posterior. Our results demonstrated that chordoma/chondrosarcoma, redo operations, and lesions involving the tip of the petrous apex or far medial locations were more difficult to achieve total resection. This classification could help surgeons understand surgical anatomy framework, predict possible structures at risk, and select the most appropriate approach for each patient.
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Affiliation(s)
- Udom Bawornvaraporn
- Division of Neurosurgery, Duke University Medical Center, Durham, NC, USA.
- Division of Neurosurgery, Department of Surgery, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Bangkok, 10330, Thailand.
| | - Ali R Zomorodi
- Division of Neurosurgery, Duke University Medical Center, Durham, NC, USA
| | - Allan H Friedman
- Division of Neurosurgery, Duke University Medical Center, Durham, NC, USA
| | - Takanori Fukushima
- Division of Neurosurgery, Duke University Medical Center, Durham, NC, USA
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14
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Niranjan A, Raju SS, Kano H, Flickinger JC, Lunsford LD. Clinical and Imaging Response to Trigeminal Schwannoma Radiosurgery: A Retrospective Analysis of a 28-Year Experience. J Neurol Surg B Skull Base 2021; 82:491-499. [PMID: 34513554 DOI: 10.1055/s-0040-1714110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 05/17/2020] [Indexed: 10/23/2022] Open
Abstract
Objective The purpose of this study was to evaluate long-term clinical outcomes and tumor control after stereotactic radiosurgery (SRS) for trigeminal schwannoma (TS). Methods During a 28-year period (1989-2017), 50 patients underwent SRS for TS. The median patient age was 51 years (range: 15-87 years). A total of 17 patients had a previous tumor resection: 10 had a single procedure, 5 had two procedures, and 2 had three procedures. The median and mean times between tumor resection and SRS were 12 and 24 months (range: 1-90 months), respectively. Four patients had neurofibromatosis II (NF2). Based on location, tumors were classified as root type (7), ganglion type (22), or dumbbell type (21). The median radiosurgery target volume was 3.4 cm 3 (range: 0.10-18 cm 3 ), median target dose was 14 Gy (range: 12-20 Gy), and the median number of isocenters was 6 (range: 1-15). The median and mean times to last follow-up was 36.9 and 55.2 months (range: 4-205 months), respectively. Eighteen patients (36%) had longer than 5-year follow-up, and seven patients (14%) had longer than 10-year follow-up. Results The tumor control rate was 92% and the clinical improvement or stabilization rate was 94%. After SRS, the rates of progression free survival (PFS) at 1, 5, and 10 years were 98, 84, and 84%, respectively. Factors associated with improved PFS were female sex ( p = 0.014) and smaller tumor volume ( p = 0.022). In this series, we did not find that tumor type (root, ganglion, and dumbbell) had a statistically significant correlation to PFS. Forty-seven patients had neurological signs or symptoms at presentation. At last follow-up, neurological signs or symptoms improved in 22/47 (47%), remained unchanged in 24/50 (48%), and worsened due to tumor progression in 3/50 (6%). One patient (2%) developed temporary symptomatic adverse radiation effect (ARE) and three additional patients (6%) had transient imaging evidence of peritumoral reactive edema but no new symptoms. Conclusion As a single outpatient procedure, SRS was associated with long-term freedom from additional management in 84% of patients. Nearly half the treated patients experienced improvement in neurological symptoms or signs.
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Affiliation(s)
- Ajay Niranjan
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, United States
| | - Sudesh S Raju
- Department of Neurological Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, United States
| | - Hideyuki Kano
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, United States
| | - John C Flickinger
- Department of Radiation Oncology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, United States
| | - Lawrence Dade Lunsford
- Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, United States
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15
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Bond JD, Xu Z, Zhang H, Zhang M. Meckel's Cave and Somatotopy of the Trigeminal Ganglion. World Neurosurg 2021; 148:178-187. [PMID: 33516868 DOI: 10.1016/j.wneu.2021.01.081] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 01/16/2021] [Accepted: 01/18/2021] [Indexed: 02/08/2023]
Abstract
BACKGROUND The anatomy and spatial relationships of the dural sac comprising the Meckel cave (MC) and its ensheathed trigeminal ganglion (TG) are exceedingly intricate and complex. There are conflicting accounts in the literature regarding the dural configuration of the MC around the ganglion and the dual embryology of the MC and TG is still unclear. METHODS A combined systematic and narrative literature review was conducted to collate articles addressing MC and TG anatomy, in addition to their embryology, role in tumor spread, somatotopy, and association with trigeminal neuralgia. RESULTS Three key anatomic models by Paturet (1964), Lazorthes (1973), and Lang and Ferner (1983) have been put forward to show the arrangement of the MC around the TG. The TG is formed from both neural crest and placodal cells and drags the enveloping dura caudally to form the MC prolongation during development. Both a mediolateral and dorsoventral somatotopic arrangement of neurons exists in the TG, which corresponds to the 3 nerve divisions, of which V2 and V3 are prone to perineural tumor spread along their course. CONCLUSIONS Sound knowledge concerning the dural arrangement of the MC and the trigeminal divisions will be invaluable in optimally treating cancers in this region, and understanding TG somatotopy will immensely improve treatment of trigeminal neuralgia in terms of specificity, efficacy, and positive patient outcomes.
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Affiliation(s)
- Jacob D Bond
- Department of Anatomy, University of Otago, Dunedin, New Zealand; Dunedin School of Medicine, University of Otago, Dunedin, New Zealand
| | - Zhaoyang Xu
- Department of Anatomy, University of Otago, Dunedin, New Zealand
| | - Han Zhang
- Dunedin School of Medicine, University of Otago, Dunedin, New Zealand
| | - Ming Zhang
- Department of Anatomy, University of Otago, Dunedin, New Zealand; Department of Anatomy, Anhui Medical University, Hefei, China.
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16
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Suárez C, López F, Mendenhall WM, Andreasen S, Mikkelsen LH, Langendijk JA, Bondi S, Rodrigo JP, Bäck L, Mäkitie AA, Fernández-Alvarez V, Coca-Pelaz A, Smee R, Rinaldo A, Ferlito A. Trends in the Management of Non-Vestibular Skull Base and Intracranial Schwannomas. Cancer Manag Res 2021; 13:463-478. [PMID: 33500660 PMCID: PMC7822088 DOI: 10.2147/cmar.s287410] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Accepted: 12/30/2020] [Indexed: 01/18/2023] Open
Abstract
The aim of this review is to analyze the latest trends in the management of non-vestibular skull base and intracranial schwannomas in order to optimize tumor control and quality of life. Non-vestibular cranial nerve schwannomas are rare lesions, representing 5–10% of cranial nerve schwannomas. Management decisions should be individualized depending on tumor size, location and associated functional deficits. Generally, large sized schwannomas exerting significant mass effect with increased intracranial pressure are treated surgically. In some cases, even after optimal skull base resection, it is not possible to achieve a gross total resection because tumor location and extent and/or to reduce morbidity. Thus, subtotal resection followed by stereotactic radiosurgery or fractioned radiotherapy offers an alternative approach. In certain cases, stereotactic radiosurgery or radiotherapy alone achieves good tumor control rates and less morbidity to gross total resection. Finally, given the slow growth rate of most of these tumors, observation with periodic radiographic follow-up approach is also a reasonable alternative for small tumors with few, if any, symptoms.
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Affiliation(s)
- Carlos Suárez
- Instituto de Investigación Sanitaria del Principado de Asturias and CIBERONC, ISCIII, Oviedo, Spain.,Instituto Universitario de Oncología del Principado de Asturias, Universidad of Oviedo, Oviedo, Spain
| | - Fernando López
- Instituto de Investigación Sanitaria del Principado de Asturias and CIBERONC, ISCIII, Oviedo, Spain.,Instituto Universitario de Oncología del Principado de Asturias, Universidad of Oviedo, Oviedo, Spain.,Department of Otorhinolaryngology, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - William M Mendenhall
- Department of Radiation Oncology, University of Florida College of Medicine, Gainesville, FL, USA
| | - Simon Andreasen
- Department of Otorhinolaryngology Head and Neck Surgery and Audiology, Rigshospitalet, Copenhagen, Denmark.,Department of Otorhinolaryngology and Maxillofacial Surgery, Zealand University Hospital, Køge, Denmark.,Department of Pathology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Lauge Hjorth Mikkelsen
- Department of Pathology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Johannes A Langendijk
- Department of Radiation Oncology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Stefano Bondi
- Department of Otorhinolaryngology-Head and Neck Surgery, San Raffaele Hospital, Vita-Salute University, Milan, Italy
| | - Juan P Rodrigo
- Instituto de Investigación Sanitaria del Principado de Asturias and CIBERONC, ISCIII, Oviedo, Spain.,Instituto Universitario de Oncología del Principado de Asturias, Universidad of Oviedo, Oviedo, Spain.,Department of Otorhinolaryngology, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Leif Bäck
- Department of Otorhinolaryngology - Head and Neck Surgery, University of Helsinki, Helsinki University Hospital, Helsinki, Finland
| | - Antti A Mäkitie
- Department of Otorhinolaryngology - Head and Neck Surgery, University of Helsinki, Helsinki University Hospital, Helsinki, Finland.,Research Program in Systems Oncology, Faculty of Medicine, University of Helsinki, Helsinki, Finland.,Division of Ear, Nose and Throat Diseases, Department of Clinical Sciences, Intervention and Technology, Karolinska Institute, Karolinska Hospital, Stockholm, Sweden
| | | | - Andrés Coca-Pelaz
- Instituto de Investigación Sanitaria del Principado de Asturias and CIBERONC, ISCIII, Oviedo, Spain.,Instituto Universitario de Oncología del Principado de Asturias, Universidad of Oviedo, Oviedo, Spain.,Department of Otorhinolaryngology, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Robert Smee
- Department of Radiation Oncology, The Prince of Wales Cancer Centre, Sydney, NSW, Australia
| | | | - Alfio Ferlito
- International Head and Neck Scientific Group, Padua, Italy
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SIMULTANEOUS REMOVAL OF THE NEURINOMA OF THE TRIPLE NERV, LOCALIZED IN THE BACK, MIDDLE, AND SECULAR PITS. CLINICAL OBSERVATION AND REVIEW OF LITERATURE. КЛИНИЧЕСКАЯ ПРАКТИКА 2020. [DOI: 10.17816/clinpract26340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
The aim of the study is to consider and show the possibilities of methods for surgery of skull base tumors using the example of successful surgical treatment of a patient with widespread trigeminal neuroma located in the posterior, middle and temporal fossae, as well as to analyze international scientific experience on this issue.
Materials and methods. In February 2020, a 60-year-old patient with widespread trigeminal neuroma on the left was admitted to the Federal Scientific-Clinical Center of FMBA of Russia in February 2020. After additional examination and preoperative preparation, a planned operation was performed - osteoplastic orbitozygomatic trepanation of the skull, microsurgical removal of the tumor through subtemporal transcavernous access. A good postoperative clinical result was obtained. An analysis of the available scientific literature on this problem is carried out.
Results. In the postoperative period, pain and neurological symptoms, hemifacial spasm completely regressed. 1.5 months after the operation, the tumor was totally removed in the control images. In the course of the analysis of available foreign and domestic literature, 65 observations of trigeminal tumors with extracranial growth were found, the total removal of which was performed only in 20% of patients.
Conclusion. Despite the extreme complexity of the pathology, the operation through the orbitozygomatic subtemporal transcavernous access allows you to completely remove the common and giant trigeminal neuromas with a good functional result.
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Al Anazi AH, Hendam AT, Al-Nemer AM, Al Anazi FA. A Case of Trigeminal Schwannoma Presenting as a Parasellar Mass. SAUDI JOURNAL OF MEDICINE & MEDICAL SCIENCES 2019; 6:169-171. [PMID: 30787846 PMCID: PMC6196694 DOI: 10.4103/sjmms.sjmms_120_16] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Schwannoma's of considerable size arising from the trigeminal nerve are very rare. Here, a case of a large right-sided parasellar mass diagnosed as a trigeminal schwannoma is reported. Complete resection of the tumor was successfully achieved. The patient had an excellent postoperative course.
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Affiliation(s)
- Abdulrahman H Al Anazi
- Department of Neurosurgery and Department of Pathology, Imam Abdulrahman Bin Faisal University, Al Khobar, Saudi Arabia
| | - Ahmed T Hendam
- Department of Neurosurgery and Department of Pathology, Imam Abdulrahman Bin Faisal University, Al Khobar, Saudi Arabia
| | - Areej M Al-Nemer
- King Fahd Hospital of the University, Imam Abdulrahman Bin Faisal University, Al Khobar, Saudi Arabia
| | - Feras A Al Anazi
- Department of Neurosurgery and Department of Pathology, Imam Abdulrahman Bin Faisal University, Al Khobar, Saudi Arabia
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19
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Snyder MH, Shepard MJ, Chen CJ, Sheehan JP. Stereotactic Radiosurgery for Trigeminal Schwannomas: A 28-Year Single-Center Experience and Review of the Literature. World Neurosurg 2018; 119:e874-e881. [DOI: 10.1016/j.wneu.2018.07.289] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 07/30/2018] [Accepted: 07/31/2018] [Indexed: 11/26/2022]
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20
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Neves MWF, de Aguiar PHP, Belsuzarri TAB, de Araujo AMS, Paganelli SL, Maldaun MVC. Microsurgical Management of Trigeminal Schwannoma: Cohort Analysis and Systematic Review. J Neurol Surg B Skull Base 2018; 80:264-269. [PMID: 31143569 DOI: 10.1055/s-0038-1669418] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 07/11/2018] [Indexed: 10/28/2022] Open
Abstract
Background Trigeminal schwannomas are benign tumors with a predilection for women between 40 and 60 years of age and account for less than 0.5% of all intracranial tumors. Clinical presentation depends on size and location, and typical symptoms are ipsilateral hypesthesia, headache, and facial pain. Clinical features and imaging usually make the Diagnosis. Methods A retrospective cohort analysis of 14 patients treated at our institution between January 1999 and October 2016 was performed, with a critical and systematic review of data from the literature, focusing on articles published over the same period. Results Fourteen patients were included in our series comprised of mostly women with a mean age of 40 years. Lesion size ranged from 3 to 6.5 cm (mean 4.6 cm). Clinical status of patients was evaluated and also rated based on the Karnofsky Perfomance Scale with values greater than 90% found in all patients pre and postoperatively. Surgery was our treatment of choice, and gross total resection was achieved in 71% of patients. Associated morbidity was high at 57%, predominantly from cranial nerve palsy, and no deaths were encountered. Conclusions Microsurgery is a suitable treatment for large symptomatic trigeminal schwannomas, achieving good local control rates over the observation period at acceptable morbidity. Therefore, microsurgery appears to a suitable option. During the study period, a significant evolution in the availability of treatment methods occurred. Radiosurgery emerged as an alternative treatment for unresectable lesions. A comprehensive review of the available literature was performed, and results were compared according to treatment modality.
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Affiliation(s)
- Maick Willen Fernandes Neves
- Department of Neurosurgery, Hospital Celso Pierro, Pontifícial Catholic University of Campinas, Campinas, São Paulo, Brazil
| | | | - Telmo Augusto Barba Belsuzarri
- Department of Neurosurgery, Hospital Celso Pierro, Pontifícial Catholic University of Campinas, Campinas, São Paulo, Brazil
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Makarenko S, Ye V, Akagami R. Natural History, Multimodal Management, and Quality of Life Outcomes of Trigeminal Schwannomas. J Neurol Surg B Skull Base 2018; 79:586-592. [PMID: 30456029 DOI: 10.1055/s-0038-1651503] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Accepted: 03/31/2018] [Indexed: 10/16/2022] Open
Abstract
Background Trigeminal schwannomas are the second most common among intracranial schwannomas. These can arise from anywhere between the root and the distal extracranial branches of the trigeminal nerve. Clinical presentation depends on location and size, including but not limited to facial hypesthesia or pain, headaches, dizziness, ataxia, and diplopia. Literature is strikingly scant discussing the natural history of these lesions, while the treatment goals are heavily dependent on tumor presentation. Management decisions must be individualized to each tumor and each patient, while attempting to maximize the quality of life. We present the natural history of these lesions as well as their management by surgical resection or radiation therapy, and report long-term quality of life outcomes. Methods Between 2001 and 2015, 24 patients (66.7% female) with trigeminal schwannomas were diagnosed and managed at Vancouver General Hospital. We analyzed the clinical presentation, surgical results, resection rates, patient quality of life, and complications. To complete the evaluation, we prospectively collected 36-Item Short Form Health Survey (SF-36) quality of life assessments for comparison. Results We identified 12 patients treated with a craniotomy and surgical resection, 4 were treated with radiation therapy, while 8 patients were followed by observation. Mean age of study cohort was 49.2 years (range, 23-79 years), and most patients presented with facial hypesthesia (54.2%) and headaches (37.5%), while 37.5% were incidental findings. There were no major differences in patient demographics between the three groups. Patients offered surgery had larger lesions (mean diameter, 3.4 ± 1.1 cm) when compared with those that were irradiated or observed, and were more likely to have extracranial extension. Overall patient quality of life improved following treatment (ΔSF-36 + 12.9) at 3.9 years. Conclusions The treatment goals of trigeminal schwannomas focus on improvement in neurologic symptoms, relief of mass effect, and preservation of cranial nerve function. We demonstrate that smaller lesions found incidentally with minimal symptoms can be followed safely with serial imaging, with 1 of 9 (11.1%) progressing to require treatment over the course of 7.1 years. Management of trigeminal schwannomas should be individualized with an involvement of a multidisciplinary skull base team.
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Affiliation(s)
- Serge Makarenko
- Department of Surgery, Vancouver General Hospital, University of British Columbia, Vancouver, British Columbia, Canada
| | - Vincent Ye
- Department of Surgery, Vancouver General Hospital, University of British Columbia, Vancouver, British Columbia, Canada
| | - Ryojo Akagami
- Department of Surgery, Vancouver General Hospital, University of British Columbia, Vancouver, British Columbia, Canada
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Yang L, Hu L, Zhao W, Zhang H, Liu Q, Wang D. Endoscopic endonasal approach for trigeminal schwannomas: our experience of 39 patients in 10 years. Eur Arch Otorhinolaryngol 2018; 275:735-741. [PMID: 29350272 DOI: 10.1007/s00405-018-4871-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Accepted: 01/08/2018] [Indexed: 11/24/2022]
Abstract
BACKGROUND The anatomical locations involved in trigeminal schwannomas (TSs) are quite complex. The endoscopic endonasal approach provides a minimal damage access corridor to both anterior and middle skull base for surgery. Given the nerve function recovery and postoperative neurological deterioration varied in different reports, the author demonstrates his surgery tips and the functional outcomes under endoscopic surgery in one single institution. METHODS A retrospective review of patients with TSs was undertaken to assess the outcome of endoscopic surgery from 2006 to 2016. Clinical features, imaging findings, preoperative/postoperative neurological deficits, surgical approaches and followed up data were collected. RESULTS Thirty-nine patients with TSs were included in this study. Surgical approaches include endoscopic medial maxillectomy approach (n = 8), endoscopic endonasal-assisted sublabial transmaxillary approach (n = 27) and endoscopic endonasal-assisted sublabial transmaxillary combined with septectomy (n = 4). Gross total resection and sub-total resection were achieved in 27 and 10 patients, respectively. The most common chief complaint was facial numbness, accounting for 41%, with a resolved rate of 62.5% after treatment. Fifteen patients developed new neurologic symptoms, including facial numbness/pain (n = 9 and 2, respectively), dry eye (n = 3) and mastication weakness (n = 1). Eight of these patients had partial improvement except for patients with dry eye. CONCLUSION Endoscopic endonasal approach represents a safe and effective surgical procedure for TSs in pterygopalatine fossa, infratemporal fossa and even Meckel cave. Tumor resection can be achieved by endoscope with few neurologic deficits and complications.
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Affiliation(s)
- Lu Yang
- Department of Otolaryngology-Head and Neck Surgery, Eye Ear Nose and Throat Hospital, Shanghai Medical College, Fudan University, 83 Fenyang Road, Shanghai, 200031, China
| | - Li Hu
- Department of Otolaryngology-Head and Neck Surgery, Eye Ear Nose and Throat Hospital, Shanghai Medical College, Fudan University, 83 Fenyang Road, Shanghai, 200031, China
| | - Weidong Zhao
- Department of Skull Base Surgery, Eye Ear Nose and Throat Hospital, Fudan University, Shanghai, China
| | - Huankang Zhang
- Department of Otolaryngology-Head and Neck Surgery, Eye Ear Nose and Throat Hospital, Shanghai Medical College, Fudan University, 83 Fenyang Road, Shanghai, 200031, China
| | - Quan Liu
- Department of Otolaryngology-Head and Neck Surgery, Eye Ear Nose and Throat Hospital, Shanghai Medical College, Fudan University, 83 Fenyang Road, Shanghai, 200031, China
| | - Dehui Wang
- Department of Otolaryngology-Head and Neck Surgery, Eye Ear Nose and Throat Hospital, Shanghai Medical College, Fudan University, 83 Fenyang Road, Shanghai, 200031, China.
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Doddamani RS, Meena RK, Mohan SM, Venkatramanaa NK. Single Stage Complete Removal of Dumbbell Trigeminal Schwannoma in a Child by Skull Base Approach. Asian J Neurosurg 2018; 13:136-139. [PMID: 29492145 PMCID: PMC5820870 DOI: 10.4103/1793-5482.175633] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Trigeminal schwannomas (TSs) are extremely rare tumors in childhood, particularly in the absence of neurofibromatosis. Although multi-staged surgical strategies have been reported in the literature, safe and single stage microsurgical removal is possible. We report a rare case of dumbbell TS, in a 9-year-old girl in whom single stage complete removal was done using fronto-temporo-orbito-zygomatic craniotomy and sub temporal approach.
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Affiliation(s)
| | - Rajesh Kumar Meena
- Department of Neurosurgery, BGS Global Institute of Neurosciences, Bengaluru, Karnataka, India
| | - Selvam Murali Mohan
- Department of Neurosurgery, BGS Global Institute of Neurosciences, Bengaluru, Karnataka, India
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Rangel-Castilla L, Russin JJ, Spetzler RF. Surgical management of skull base tumors. Rep Pract Oncol Radiother 2016; 21:325-35. [PMID: 27330418 PMCID: PMC4899518 DOI: 10.1016/j.rpor.2014.09.002] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2014] [Revised: 07/21/2014] [Accepted: 09/16/2014] [Indexed: 10/24/2022] Open
Abstract
AIM To present a review of the contemporary surgical management of skull base tumors. BACKGROUND Over the last two decades, the treatment of skull base tumors has evolved from observation, to partial resection combined with other therapy modalities, to gross total resection and no adjuvant treatment with good surgical results and excellent clinical outcomes. MATERIALS AND METHODS The literature review of current surgical strategies and management of skull base tumors was performed and complemented with the experience of Barrow Neurological Institute. RESULTS Skull base tumors include meningiomas, pituitary tumors, sellar/parasellar tumors, vestibular and trigeminal schwannomas, esthesioneuroblastomas, chordomas, chondrosarcomas, and metastases. Surgical approaches include the modified orbitozygomatic, pterional, middle fossa, retrosigmoid, far lateral craniotomy, midline suboccipital craniotomy, and a combination of these approaches. The selection of an appropriate surgical approach depends on the characteristics of the patient and the tumor, as well as the experience of the neurosurgeon. CONCLUSION Modern microsurgical techniques, diagnostic imaging, intraoperative neuronavigation, and endoscopic technology have remarkably changed the concept of skull base surgery. These refinements have extended the boundaries of tumor resection with minimal morbidity.
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Affiliation(s)
| | | | - Robert F. Spetzler
- Division of Neurological Surgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, AZ, United States
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Niranjan A, Barnett S, Anand V, Agazzi S. Multimodality Management of Trigeminal Schwannomas. J Neurol Surg B Skull Base 2016; 77:371-8. [PMID: 27441164 DOI: 10.1055/s-0036-1581138] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2015] [Accepted: 02/17/2016] [Indexed: 10/21/2022] Open
Abstract
Patients presenting with trigeminal schwannomas require multimodality management by a skull base surgical team that can offer expertise in both transcranial and transnasal approaches as well as radiosurgical and microsurgical strategies. Improvement in neurologic symptoms, preservation of cranial nerve function, and control of mass effect are the primary goals of management for trigeminal schwannomas. Complete surgical resection is the treatment of choice but may not be possible in all cases. Radiosurgery is an option as primary management for small- to moderate-sized tumors and can be used for postoperative residuals or recurrences. Planned surgical resection followed by SRS for residual tumor is an effective option for larger trigeminal schwannomas. The endoscopic resection is an excellent approach for patients with an extradural tumor or tumors isolated to the Meckel cave. A detailed analysis of a tumor and its surroundings based on high-quality imaging can help better estimate the expected outcome from each treatment. An expert skull base team should be able to provide precise counseling for each patient's situation for selecting the best option.
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Affiliation(s)
- Ajay Niranjan
- Department of Neurological Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, United States
| | - Samuel Barnett
- Department of Neurological Surgery, UT Southwestern Medical Center, Dallas, Texas, United States
| | - Vijay Anand
- Department of Otolaryngology-Head and Neck Surgery, Weill Cornell Medical College, New York, New York, United States
| | - Siviero Agazzi
- Department of Neurosurgery, University of South Florida, Tampa, Florida, United States
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Abstract
Orofacial pain may be a symptom of diverse types of cancers as a result of local or distant tumor effects. The pain can be presented with the same characteristics as any other orofacial pain disorder, and this should be recognized by the clinician. Orofacial pain also can arise as a consequence of cancer therapy. In the present article, we review the mechanisms of cancer-associated facial pain, its clinical presentation, and cancer therapy associated with orofacial pain.
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Affiliation(s)
- Marcela Romero-Reyes
- Orofacial and Head Pain Service, Department of Oral and Maxillofacial Pathology Radiology and Medicine, New York University College of Dentistry, 345 East 24th Street, New York, NY, 10010, USA,
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Ito CJ, Malone AK, Wong RH, van Loveren HR, Boyev KP. Denervation of the Eustachian Tube and Hearing Loss Following Trigeminal Schwannoma Resection. J Neurol Surg Rep 2016; 77:e56-61. [PMID: 26937336 PMCID: PMC4773822 DOI: 10.1055/s-0035-1570389] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Objectives To discuss eustachian tube dysfunction (ETD) as a cause of hearing loss and to discuss its pathogenesis following resection of trigeminal schwannomas. Methods Presented herein are two cases of trigeminal schwannoma that were resected surgically with sacrifice of the motor branch of the trigeminal nerve. Neither of the cases had evidence of extracranial extension nor preoperative ETD. Both patients developed ETD and have been followed without evidence of schwannoma recurrence. Conclusions Trigeminal schwannomas are rare tumors that typically require surgical resection. Hearing loss is a potential postsurgical deficit and warrants evaluation by an otolaryngologist with consideration given to a preoperative audiogram. ETD as a result of trigeminal motor branch sacrifice should be included in the differential diagnosis of postoperative hearing loss in this patient subset as it may be reversed with placement of a tympanostomy tube.
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Affiliation(s)
- Christopher J Ito
- Department of Otolaryngology-Head and Neck Surgery, University of South Florida, Tampa, Florida, United States
| | - Alexander K Malone
- Department of Otolaryngology-Head and Neck Surgery, University of South Florida, Tampa, Florida, United States
| | - Ricky H Wong
- Skull Base and Pituitary Surgery, NorthShore University Health System, Evanston, Illinois, United States
| | - Harry R van Loveren
- Department of Neurosurgery and Brain Repair, University of South Florida, Tampa, Florida, United States
| | - K Paul Boyev
- Department of Otolaryngology-Head and Neck Surgery, University of South Florida, Tampa, Florida, United States
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Krishnamurthy A, Ramshankar V, Majhi U. A large extra cranial cystic trigeminal schwannoma of the parapharyngeal space - exploring the right approach. Indian J Surg Oncol 2014; 5:196-8. [PMID: 25419065 DOI: 10.1007/s13193-014-0326-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2013] [Accepted: 06/25/2014] [Indexed: 11/27/2022] Open
Abstract
Tumors of the parapharyngeal space (PPS) are uncommon, comprising less than 1 % of all head and neck neoplasm's. Neurogenic lesions are the most common tumors of the poststyloid PPS accounting for nearly 25-30 % of all the PPS lesions. Schwannomas are uncommon nerve sheath tumors that may originate from any peripheral, cranial or autonomic nerve of the body, about one-third of them are known to arise in the head and neck region. Trigeminal schwannomas are known to arise from the root, ganglion, or intracranial portion of the three peripheral divisions of the nerve - ophthalmic (CN V1), maxillary (CN V2) and mandibular (CN V3). Schwannomas involving the mandibular division of the trigeminal nerve and localizing exclusively in the parapharyngeal space (PPS) is extremely rare and a surgical approach to such tumors has not been well established. The management of a PPS schwannoma is thus a clinical challenge, an adequate preoperative imaging with the identification of the possible nerve of origin allows for making informed decisions regarding the various approaches of management.
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Affiliation(s)
| | | | - Urmila Majhi
- Cancer Institute (WIA), 38, Sardar Patel Rd, Adyar, Chennai, 600036 India
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Jeong SK, Lee EJ, Hue YH, Cho YH, Kim JH, Kim CJ. A suggestion of modified classification of trigeminal schwannomas according to location, shape, and extension. Brain Tumor Res Treat 2014; 2:62-8. [PMID: 25408927 PMCID: PMC4231622 DOI: 10.14791/btrt.2014.2.2.62] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2014] [Revised: 09/02/2014] [Accepted: 09/23/2014] [Indexed: 11/20/2022] Open
Abstract
Background Comprehensive knowledge of the anatomical features of trigeminal schwannomas (TSs) is essential in planning surgery to achieve complete tumor resection. In the current report, we propose a modified classification of TSs according to their location of origin, shape, and extension into the adjacent compartment, and discuss appropriate surgical strategies with this classification. Methods We retrospectively analyzed 49 patients with TS who were treated surgically by a single neurosurgeon at the Asan Medical Center between 1993 and 2013. Results There were 22 males and 27 females, with the median age of 40 years (range, 21-75 years). Median tumor size was 4.0 cm in diameter (2.0-7.0 cm). Tumors were classified as follows: Type M (confined to the middle fossa; 8 cases, 19.0%), P (confined to the posterior fossa; 2 cases, 4.8%), MP (involving equally both middle and posterior fossae; 5 cases, 11.9%), Mp (predominantly middle fossa with posterior fossa extension; 6 cases, 14.3%), Pm (predominantly posterior fossa with middle fossa extension; 16 cases, 38.1%), Me (predominantly middle fossa with extracranial extension; 4 cases, 9.5%). Surgical approach was chosen depending on the tumor classification. More specifically, a frontotemporal craniotomy and extradural approach with or without zygomatic or orbitozygomatic osteotomy was applied to M- or Mp-type tumors; a lateral suboccipital craniotomy with or without suprameatal approach was applied to the majority of P- or Pm-type tumors; and a posterior transpetrosal approach was used in four tumors (three Pm and one MP). Gross total resection was achieved in 95.9% of patients, and the overall recurrence rate was 4.1% (2 patients). Postoperatively, trigeminal symptoms were improved or unchanged in 51.0% of cases (25 patients). Surgical complications included meningitis (5 patients) and cerebrospinal fluid leakage (3 patients). There was no mortality. Conclusion TSs are well to be classified with our modified classification and able to be removed effectively and safely by selecting appropriate surgical approaches.
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Affiliation(s)
- Seong Kyun Jeong
- Department of Neurosurgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Eun Jung Lee
- Department of Neurosurgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Yun Hee Hue
- Department of Neurosurgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Young Hyun Cho
- Department of Neurosurgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jeong Hoon Kim
- Department of Neurosurgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Chang Jin Kim
- Department of Neurosurgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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Operative management of trigeminal neuromas: an analysis of a surgical experience with 55 cases. Acta Neurochir (Wien) 2014; 156:1105-14. [PMID: 24633987 DOI: 10.1007/s00701-014-2051-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Accepted: 02/22/2014] [Indexed: 10/25/2022]
Abstract
BACKGROUND The trigeminal schwannoma is the second most common intracranial schwannoma. Their proximity to the critical skull base neural and vascular structures increases the complexity of surgical treatment. The aim of this study was to better understand the surgical approaches and the prognosis, as well as to assess the optimum therapeutic schedule. METHODS This was a retrospective study of 55 patients with trigeminal schwannomas who visited our department between Jan 2007 and Jan 2012. We analyzed the clinical and radiological presentation, tumor characteristics, surgical approaches, the prognosis. RESULTS The patients were 30 women and 25 men of mean age 36 years (range, 6-66 years) who received postoperative neurological and neuroradiological follow-up. The tumor was located in the middle fossa (type A) in 13 cases, in the posterior fossa (type B) in ten cases, in the middle and posterior fossae (type C) in 21 cases, and in the branches of the trigeminal nerve (type D) in 11 cases. The most common symptom was facial hypesthesia or numbness in 36 patients (65 %) . Total and nearly total tumor resection was achieved in 51 cases (93 %). Three patients (5 %) had worsening of preexisting deficits and there was no perioperative mortality. With an average follow-up period of 35 months, facial hypesthesia persisted in 26 patients (72 %),and improved in ten patients (28 %). Facial pain was relieved in 11 patients (100 %). There has been a recurrence in one case (2 %) and all patients resumed independent and social reintegration. CONCLUSION This study demonstrates radical surgery with excellent neurological outcomes is the primary treatment of trigeminal schwannomas. Appropriate selection of surgical approach according to tumor types is highly important and necessary. The preoperative facial pain could be relieved, hypesthesia frequently remains or could even be worsened after surgery.
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Wanibuchi M, Fukushima T, Friedman AH, Watanabe K, Akiyama Y, Mikami T, Iihoshi S, Murakami T, Sugino T, Mikuni N. Hearing preservation surgery for vestibular schwannomas via the retrosigmoid transmeatal approach: surgical tips. Neurosurg Rev 2014; 37:431-44; discussion 444. [DOI: 10.1007/s10143-014-0543-9] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Revised: 11/25/2013] [Accepted: 01/19/2014] [Indexed: 11/30/2022]
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