scholarly journals Total resection of recurrent meningothelial meningioma through a combined transcranial.endonasal approach

2020 ◽  
Vol 6 (1) ◽  
pp. 01-04
Author(s):  
Orestes López Piloto ◽  
Yurledys Jhohana Linares Benavides
Keyword(s):  
Paranasal Sinuses ◽  
Tumor Resection ◽  
Previous History ◽  
Endoscopic Approach ◽  
World Health ◽  
Bone Flap ◽  
Total Resection ◽  
Who Grade ◽  
Olfactory Groove ◽  
Transcranial Approach

Objective: To evaluate the efficacy of combining an endonasal endoscopic approach and transcranial approach in a patient with a recurrent olfactory cleft meningothelial meningioma. Case report: A 57-years-old female caucasian patient was referred to our institution with a previous history hypertension and a right frontal craniotomy for a World Health Organization (WHO) grade I meningioma with 70% removal of the lesion. A second frontal craniotomy was performed with a 95% resection of the tumor. She received adjuvant treatment with Conformal Radiotherapy (30 sessions) and Nimotuzumab (33 doses). Seven months after was treated surgically for a bone flap osteomyelitis with removal of the bone flap. An endonasal endoscopic transcribiform approach was performed with a partial removal of the lesion. Few weeks after the patient started again with frontobasal soft tissue growing and frontal headache. CT and RMI scans showed regrowing of the tumor. A combined simultaneous endonasal endoscopic approach-transcraneal approach through bilateral frontal craniotomy was performed. There were not transoperative or postoperative complications. The hospital stay was 9 days. Conclusions: Olfactory groove meningiomas can extend into the paranasal sinuses. The cranial base and paranasal sinuses are the most common sites of tumor recurrence even after gross total resection. Radical tumor resection, by a combined endonasal and transcranial approach is the best way to reduce the chances of recurrence.

scholarly journals Transcavernous Approach for Gross Total Resection of a Dumbbell-Shaped Giant Trigeminal Schwannoma

2021 ◽  
Author(s):  
Sima Sayyahmelli ◽  
Emel Avci ◽  
Burak Ozaydin ◽  
Mustafa K. Başkaya
Keyword(s):  
Skull Base ◽  
Cavernous Sinus ◽  
Tumor Resection ◽  
Mass Effect ◽  
World Health ◽  
Gross Total Resection ◽  
Petrous Apex ◽  
Total Resection ◽  
Who Grade ◽  
Trigeminal Schwannoma

AbstractTrigeminal schwannomas are rare nerve sheet tumors that represent the second most common intracranial site of occurrence after vestibular nerve origins. Microsurgical resection of giant dumbbell-shaped trigeminal schwannomas often requires complex skull base approaches. The extradural transcavernous approach is effective for the resection of these giant tumors involving the cavernous sinus.The patient is a 72-year-old man with headache, dizziness, imbalance, and cognitive decline. Neurological examination revealed left-sided sixth nerve palsy, a diminished corneal reflex, and wasting of temporalis muscle. Magnetic resonance imaging (MRI) showed a giant homogeneously enhancing dumbbell-shaped extra-axial mass centered within the left cavernous sinus, Meckel's cave, and the petrous apex, with extension to the cerebellopontine angle. There was a significant mass effect on the brain stem causing hydrocephalus. Computed tomography (CT) scan showed erosion of the petrous apex resulting in partial anterior autopetrosectomy (Figs. 1 and 2).The decision was made to proceed with tumor resection using a transcavernous approach. Gross total resection was achieved. The surgery and postoperative course were uneventful, and the patient woke up the same as in the preoperative period. MRI confirmed gross total resection of the tumor. The histopathology was a trigeminal schwannoma, World Health Organization (WHO) grade I. The patient continues to do well without any recurrence at 15-month follow-up.This video demonstrates important steps of the microsurgical skull base techniques for resection of these challenging tumors.The link to the video can be found at https://youtu.be/TMK5363836M

scholarly journals Recurrent Sphenocavernous Meningioma

2021 ◽  
Author(s):  
Mizuho Inoue ◽  
Mohamed Labib ◽  
Alexander Yang ◽  
A. Samy Youssef
Keyword(s):  
Tumor Resection ◽  
Intensity Modulated Radiotherapy ◽  
Residual Tumor ◽  
World Health ◽  
Neurological Deficits ◽  
Falciform Ligament ◽  
Total Resection ◽  
Anterior Clinoid Process ◽  
Who Grade ◽  
Health Organization

AbstractA case of a recurrent sphenocavernous meningioma is presented. The patient is a 42-year-old male who presented with an episode of transient right-sided numbness. A magnetic resonance imaging (MRI) revealed a large left sphenocavernous meningioma. The patient underwent a frontotemporal craniotomy for tumor resection. Near total resection was achieved with minimal residual in the left cavernous sinus (CS) and orbital apex. The pathology was consistent with meningioma, World Health Organization (WHO) grade I. A follow-up MRI was done 9 months after surgery and showed a growth of the residual tumor, which was treated with intensity modulated radiotherapy. Tumor growth was detected on serial imaging over a 4-year period. Surgical resection was offered. A left frontotemporal craniotomy with pretemporal transcavernous approach was performed. The bone flap was reopened and the dura was opened in a Y-shaped fashion. The roof of the optic canal was drilled off, and the falciform ligament was opened to decompress the optic nerve. The tumor was disconnected from the anterior clinoid region (the anterior clinoid process was eroded by the tumor) and reflected off the wall of the lateral CS. Tumor was adherent to the V2 fascicles (the lateral CS wall was resected in the first surgery) and was sharply dissected off. Gross total resection was achieved. The pathology was consistent with meningioma, WHO grade I. The patient had an unremarkable postoperative course without any new neurological deficits.The link to the video can be found at: https://youtu.be/KVBVw_86JqM.

scholarly journals CTNI-20. PCV CHEMOTHERAPY ALONE IS ASSOCIATED WITH BETTER CLINICAL COURSE IN OLIGODENDROGLIOMA WHO GRADE II

2020 ◽  
Vol 22 (Supplement_2) ◽  
pp. ii46-ii46
Author(s):  
Jonathan Weller ◽  
Sophie Katzendobler ◽  
Philipp Karschnia ◽  
Stefanie Lietke ◽  
Rupert Egensperger ◽  
...  
Keyword(s):  
Stereotactic Biopsy ◽  
Tumor Volume ◽  
Treatment Guidelines ◽  
Tumor Resection ◽  
World Health ◽  
Incomplete Resection ◽  
Watch And Wait ◽  
Who Grade ◽  
Long Term Outcome ◽  
Pcv Chemotherapy

Abstract BACKGROUND Current treatment guidelines for oligodendrogliomas (OD) recommend watch-and-wait strategies after gross total resection and radiation with subsequent chemotherapy (procarbazine, CCNU and vincristine (PCV)) after incomplete resection. The value of chemotherapy alone as an option to delay the risk of late cognitive deficits is not well defined yet. Here, we retrospectively investigated long-term outcome in OD WHO II with respect to initial therapy and tumor volume in magnetic resonance imaging (MRI). METHODS A total of 142 patients with OD WHO (World Health Organization) II according to WHO 2016 were retrospectively included. Patients either had watch and wait (W&W) after histological sampling through stereotactic biopsy (n=59) or tumor resection (n=27) or else stereotactic biopsy with subsequent temozolomide (TMZ) (n=26) or PCV (n=30). Pre- and post-therapeutic T2 tumor volumes were obtained. Progression-free survival (PFS), post-recurrence PFS (PR-PFS) and rate of secondary malignization after 10 years (MR-10yrs) were correlated with clinical and volumetric data. RESULTS PFS was significantly longer in the PCV cohort compared to TMZ (9.1 vs. 3.6 years, p = 0.04), even after matching patients according to age and initial tumor volume (9.1 vs 4.7 yrs, p = 0.03). PFS in the W&W cohort was 5.1 years and 4.4 years in those receiving tumor resection only. MR-10yrs was 4% in PCV cohort, 18% in the W&W cohort and 52% in the resection only cohort (p = 0.01). In the W&W cohort, patients treated with PCV at first relapse had a longer PR-PFS than those treated with TMZ (in years, 7.2 vs 4.0, p = 0.04). Multivariate analysis confirmed initial PCV therapy (p = 0.01) and initial T2 tumor volume (p = 0.02) to be prognostic. CONCLUSION In oligodendrogliomas WHO II PCV chemotherapy alone is superior in terms of PFS and rate of secondary malignization compared to TMZ chemotherapy alone or tumor resection only.

Quantification of Glioma Removal by Intraoperative High-Field Magnetic Resonance Imaging: An Update

Neurosurgery ◽  
2011 ◽  
Vol 69 (4) ◽  
pp. 852-863 ◽  
Author(s):  
Daniela Kuhnt ◽  
Oliver Ganslandt ◽  
Sven-Martin Schlaffer ◽  
Michael Buchfelder ◽  
Christopher Nimsky
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
High Field ◽  
Tumor Volume ◽  
Tumor Resection ◽  
World Health ◽  
Incomplete Resection ◽  
Resonance Imaging ◽  
Glioma Surgery ◽  
Who Grade

Abstract BACKGROUND: The beneficial role of the extent of resection (EOR) in glioma surgery in correlation to increased survival remains controversial. However, common literature favors maximum EOR with preservation of neurological function, which is shown to be associated with a significantly improved outcome. OBJECTIVE: In order to obtain a maximum EOR, it was examined whether high-field intraoperative magnetic resonance imaging (iMRI) combined with multimodal navigation contributes to a significantly improved EOR in glioma surgery. METHODS: Two hundred ninety-three glioma patients underwent craniotomy and tumor resection with the aid of intraoperative 1.5 T MRI and integrated multimodal navigation. In cases of remnant tumor, an update of navigation was performed with intraoperative images. Tumor volume was quantified pre- and intraoperatively by segmentation of T2 abnormality in low-grade and contrast enhancement in high-grade gliomas. RESULTS: In 25.9% of all cases examined, additional tumor mass was removed as a result of iMRI. This led to complete tumor resection in 20 cases, increasing the rate of gross-total removal from 31.7% to 38.6%. In 56 patients, additional but incomplete resection was performed because of the close location to eloquent brain areas. Volumetric analysis showed a significantly (P < .01) reduced mean percentage of tumor volume following additional further resection after iMRI from 33.5% ± 25.1% to 14.7% ± 23.3% (World Health Organization [WHO] grade I, 32.8% ± 21.9% to 6.1% ± 18.8%; WHO grade II, 24.4% ± 25.1% to 10.8% ± 11.0%; WHO grade III, 35.1% ± 27.3% to 24.8% ± 26.3%; WHO grade IV, 34.2% ± 23.7% to 1.2% ± 16.2%). CONCLUSION: MRI in conjunction with multimodal navigation and an intraoperative updating procedure enlarges tumor-volume reduction in glioma surgery significantly without higher postoperative morbidity.

scholarly journals Transcranial approaches for pituitary adenomas: current indications and clinical and radiological outcomes

2021 ◽  
Vol 36 (1) ◽  
Author(s):  
Mohamed M. Salama ◽  
Mohamed Reda Rady
Keyword(s):  
Pituitary Adenomas ◽  
Third Ventricle ◽  
Tumor Resection ◽  
Subtotal Resection ◽  
Combined Approach ◽  
Total Resection ◽  
Third Nerve Palsy ◽  
Clinical And Radiological Outcome ◽  
Transcranial Approach ◽  
Anterior Fossa

Abstract Background The indications of transcranial approaches for pituitary adenomas have declined in the last decades with the widespread performance of endoscopic transsphenoidal approaches. The aim of the study was to review the current indications of transcranial approaches for pituitary adenomas and to evaluate the clinical and radiological outcome following these approaches. Patients and methods This study included 16 patients with fresh, residual, or recurrent pituitary adenomas operated upon by transcranial approaches alone or in combination with transsphenoidal approaches. The indication to perform a transcranial approach was reviewed for each patient. Postoperative clinical outcome and the extent of tumor resection were assessed. Results The indications of transcranial approaches were significant parasellar and/or anterior fossa extensions in 6 patients, failed previous transsphenoidal surgery in 3 patients, giant adenoma extending into the third ventricle in 3 patients, dumbbell-shaped adenoma in 2 patients, and doubtful diagnosis in 2 patients. Two patients with invasive giant adenomas were operated upon by a combined approach. There was a single mortality. Permanent complications included visual loss in one patient, third nerve palsy in one patient, hypopituitarism in two patients, and permanent diabetes insipidus in two patients. Gross total resection was achieved in one patient, subtotal resection in seven patients, and partial resection in eight patients. Conclusion Transcranial approaches are still needed for some complex pituitary adenomas particularly giant tumors with significant lateral, anterior, or superior extensions, tumors with fibrous consistency particularly after failure of transsphenoidal approach, and dumbbell-shaped tumors with severe constriction at the diaphragm.

scholarly journals Preferences and Utilities for Health States after Treatment of Olfactory Groove Meningioma: Endoscopic versus Open

2017 ◽  
Vol 78 (04) ◽  
pp. 315-323 ◽  
Author(s):  
Christopher Yao ◽  
Alyssa Kahane ◽  
Eric Monteiro ◽  
Fred Gentili ◽  
Gelareh Zadeh ◽  
...  
Keyword(s):  
Watchful Waiting ◽  
Health Utility ◽  
Cost Utility ◽  
Endoscopic Approach ◽  
Older Individuals ◽  
Health States ◽  
Stereotactic Radiation ◽  
Olfactory Groove ◽  
Transcranial Approach ◽  
Utility Scores

Objectives The purpose of this study is to report health utility scores for patients with olfactory groove meningiomas (OGM) treated with either the standard transcranial approach, or the expanded endonasal endoscopic approach. Design The time trade-off technique was used to derive health utility scores. Setting Healthy individuals without skull base tumors were surveyed. Main Outcome Measures Participants reviewed and rated scenarios describing treatment (endoscopic, open, stereotactic radiation, watchful waiting), remission, recurrence, and complications associated with the management of OGMs. Results There were 51 participants. The endoscopic approach was associated with higher utility scores compared with an open craniotomy approach (0.88 vs. 0.74; p < 0.001) and watchful waiting (0.88 vs.0.74; p = 0.002). If recurrence occurred, revision endoscopic resection continued to have a higher utility score compared with revision open craniotomy (0.68; p = 0.008). On multivariate analysis, older individuals were more likely to opt for watchful waiting (p = 0.001), whereas participants from higher income brackets were more likely to rate stereotactic radiosurgery with higher utility scores (p = 0.017). Conclusion The endoscopic approach was associated with higher utility scores than craniotomy for primary and revision cases. The present utilities can be used for future cost-utility analyses.

scholarly journals Unique Case Report of a Meningeal Sarcoma Arising during Ongoing Treatment for Progressing Intraparenchymal Glioma

2019 ◽  
Vol 2019 ◽  
pp. 1-7 ◽  
Author(s):  
Richard A. Peterson ◽  
Bhavani Kashyap ◽  
Pamala A. Pawloski ◽  
Anna C. Forsberg ◽  
Leah R. Hanson
Keyword(s):  
Radiation Therapy ◽  
Genetic Predisposition ◽  
Radiation Treatment ◽  
Tumor Resection ◽  
Tp53 Gene ◽  
World Health ◽  
High Grade ◽  
Who Grade ◽  
Li Fraumeni Syndrome ◽  
High Grade Sarcoma

Radiation-induced sarcomas in the brain are extremely rare, usually occur with an average latency of 9 years, and are associated with poor outcomes. Latency periods shorter than 1 year may indicate a genetic predisposition such as Li-Fraumeni syndrome. A 34-year-old man underwent initial tumor resection and radiation therapy for a World Health Organization (WHO) Grade II Astrocytoma. Within 6 months, the tumor recurred as WHO Grade III and was treated with temozolomide and then bevacizumab. Despite the patient’s apparent improving condition, MRI revealed new dural-based lesions 10 months after radiation therapy and identified as high-grade sarcoma. The patient resumed bevacizumab, began NovoTTF treatment for progressing glioma, and ifosfamide/doxorubicin for the sarcoma. Genetic testing revealed no pathogenic mutation in the TP53 gene. Ultimately, treatment was unsuccessful and the patient succumbed to glioma and sarcoma within 2 years of initial diagnosis. This case was unique due to the rapidly progressing glioma and sudden appearance of a high-grade sarcoma. It is unusual to have two separate intracranial primary cancers with each requiring a different chemotherapy regimen. We discuss the difficulty of simultaneously treating with separate chemotherapy regimens. It remains unclear whether the sarcoma was induced by the radiation treatment or a genetic predisposition.

scholarly journals Microsurgical resection of giant T11/T12 conus cauda equine schwannoma

2020 ◽  
Author(s):  
Alisa Arnautovic ◽  
Mirza Pojskic ◽  
Kenan Arnautovic
Keyword(s):  
Motor Evoked Potentials ◽  
Tumor Resection ◽  
Cauda Equina ◽  
Sensory Nerve ◽  
Gross Total Resection ◽  
Nerve Roots ◽  
Total Resection ◽  
Who Grade ◽  
Extramedullary Tumor ◽  
Microsurgical Resection

In this video, we highlight the anatomy involved with microsurgical resection of a giant T11/T12 conus cauda equine schwannoma. Spinal schwannoma remains the third most common intradural spinal tumor. Tumors undergoing gross total resection usually do not recur. To our knowledge, this is the first video case report of giant cauda equina schwannoma resection. A 55-year-old female presented with paraparesis and urinary retention. Lumbar spine MRI revealed contrast-enhancing intradural extramedullary tumor at the T11/T12 level. Surgery was performed in a prone position with intraoperative neurophysiology monitoring (somatosensory and motor evoked potentials - SSEP and MEP). T11/T12 laminectomies were performed. After opening the dura and arachnoid, the tumor was found covered with cauda equina nerve roots. We delineated the inferior pole of the tumor, followed by opening of the capsule and debulking the tumor. Subsequently, the cranial pole was dissected from the corresponding cauda equina nerve roots. Finally, the tumor nerve origin was identified and divided after nerve stimulation confirmed the tumor arose from a sensory nerve root. The tumor was removed; histological analysis revealed a schwannoma (WHO Grade I). Postoperative MRI revealed complete resection. The patient fully recovered her neurological function. This case highlights the importance of careful microsurgical technique and gross total resection of the tumor in the view of favorable postoperative neurological recovery of the patient. Intraoperative use of ultrasound is helpful to delineate preoperatively tumor extension and confirm postoperative tumor resection.

scholarly journals Combined Transcavernous and Kawase's Approach for Gross Total Resection of a Cavernous Sinus Meningioma

2021 ◽  
Author(s):  
Walid Elshamy ◽  
Burak Ozaydin ◽  
G. Mark Pyle ◽  
Mustafa K. Baskaya
Keyword(s):  
Cavernous Sinus ◽  
Cerebellopontine Angle ◽  
Cranial Nerves ◽  
World Health ◽  
Gross Total Resection ◽  
Surgical Removal ◽  
Total Resection ◽  
Meckel’S Cave ◽  
Who Grade ◽  
Meckel's Cave

AbstractMicrosurgery of cavernous sinus (CS) lesions is generally considered to be associated with a high rate of morbidity and cranial nerve deficits. The success for surgical removal of CS meningiomas is debatable and achieving a good functional outcome with preservation of the cranial nerves is the goal. Surgery of these lesions is challenging, recurrence rates are high, and therapeutic strategies remain controversial. In this video, we present a case of a CS meningioma that extended to Meckel's cave and the posterior fossa in a 46-year-old woman with history of a left-sided cerebellopontine angle World Health Organization (WHO) grade-I meningioma with extension to the left CS. Seven years ago, she had a microsurgical resection of a Cerebellopontine angle (CPA) meningioma. She later received radiotherapy for the slowly growing meningioma of the posterior CS. The patient presented with newly onset headache and facial pain. Magnetic resonance imaging (MRI) showed a meningioma of the left CS and Meckel's cave extending into the ambient cistern, with a mild mass effect on the pons, and a size increase compared with prior imaging. Since this area previously received radiotherapy, and the patient was symptomatic from trigeminal compression, the decision was made to proceed with surgical resection of the tumor via combined transcavernous and anterior petrosectomy. Postoperatively, the patient woke up with the same neurological status. MRI confirmed gross total resection of the tumor. The histopathology was a WHO grade-II chordoid meningioma. The patient is currently receiving radiotherapy. This video demonstrates the surgical approach and the resection steps of this pathology.The link to the video can be found at: https://youtu.be/HrU1VOzUGWU.

scholarly journals Choroid plexus papilloma and atypical choroid plexus papilloma in children: treatment results

2021 ◽  
Vol 20 (4) ◽  
pp. 33-41
Author(s):  
A. F. Valiakhmetova ◽  
L. I. Papusha ◽  
A. V. Sanakoeva ◽  
L. V. Shishkina ◽  
O. I. Budanov ◽  
...  
Keyword(s):  
Brain Tumors ◽  
Choroid Plexus ◽  
Tumor Resection ◽  
Choroid Plexus Papilloma ◽  
Radical Resection ◽  
World Health ◽  
Surgical Removal ◽  
Who Grade ◽  
Atypical Choroid Plexus Papilloma ◽  
Plexus Papilloma

Choroid plexus tumors (CPTs) are rare intraventricular tumors, accounting 2–5% of brain tumors in children. Choroid plexus papilloma (CPP) classified by the World Health Organization (WHO) on the basis of histological criteria as benign tumor (WHO grade I), CPPs accounts for 10–20% of brain tumors during the first year of life, the median age of patients with CPP at the time of diagnosis – 3.5 years. Atypical choroid plexus papilloma (APP) is an intermediate (WHO grade II) tumor which was officially included in the WHO classification in 2007. Median age 0,63 years. In this work, for the first time in the Russian literature, we present the outcomes of CPP and APP therapy in a large cohort of patients. The study was approved by the Independent Ethics Committee and the Scientific Council of the D. Rogachev NMRCPHOI. In our study from January 1, 2009 to December 31, 2019, 83 CPP and 37 APP were histologically verified. For all patients, surgical removal of the tumor was the first stage of treatment. In 79 (95.2%) patients with CPP and in 32 (86.5%) children with APP, radical resection was performed at the first stage. In 73.5% of children with CPP and 62.2% of children with APP there was no intra- and postoperative complications. In both CPP and APP, the 5-year EFS in patients with complete resection was statistically significantly higher compared to subtotal tumor resection (100% and 33 ± 27% in CPP, 94 ± 4% and 25 ± 22% for APP) (p < 0.001). Chemoradiation therapy was given to 1 patient with CPP, 4 patients with APP with tumor recurrence/progression. 

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