يعرض 1 - 10 نتائج من 156 نتيجة بحث عن '"Foramen magnum meningioma"', وقت الاستعلام: 0.84s تنقيح النتائج
  1. 1
    دورية أكاديمية

    الوصف: Patient signed informed consent regarding publishing their data and photographs. ; Introduction and aim. The foramen magnum is a rare location of meningioma development, accounting for 1.8 to 3.2% of all reported tumors of this type. Microsurgical resection, representing a gold standard in foramen magnum meningioma treat ment, may result in various neurological deficits or incomplete resection due to challenging anatomical conditions. Currently, even surgical resections of foramen magnum meningioma conducted by experienced neurosurgeons are burdened by a relatively high complication rate of 17.2% Description of the case. We report the case of a 25-year-old male who presented increasing headaches and decreasing activity for 5 months. In his medical history, the patient had been diagnosed with cerebral palsy, autism spectrum disorder, and suffered partial seizures. Magnetic resonance imaging revealed anterolateral foramen magnum meningioma. The tumor was resected via a far-lateral approach. After the surgery, the patient maintained a preoperative neurological state without additional neurological deficits. The post-operative magnetic resonance imaging demonstrated complete tumor removal. Histopatholog ical examination revealed transitional meningioma (WHO grade I). Conclusion. Our case demonstrates that the far-lateral approach can be efficient for the resection of anterolateral foramen magnum meningioma. In such cases, Simpson grade 1 can be achieved without complications, providing immediate relief of symptoms and minimizing the risk of recurrence.

    وصف الملف: application/pdf

    العلاقة: European Journal of Clinical and Experimental Medicine T. 22, z. 1 (2024), s. 243–247; https://repozytorium.ur.edu.pl/handle/item/10380Test

  2. 2
    دورية أكاديمية

    المصدر: Chinese Neurosurgical Journal, Vol 9, Iss 1, Pp 1-13 (2023)

    الوصف: Abstract Background To investigate the classification and microsurgical treatment of foramen magnum meningioma (FMM). Methods We retrospectively analyzed 76 patients with FMM and classified them into two classifications, classification ABS according to the relationship between the FMM and the brainstem and classification SIM according to the relationship between the FMM and the vertebral artery (VA). All patients underwent either the far lateral approach (54 cases) or the suboccipital midline approach (22 cases). Results Of the 76 cases, 47 cases were located ahead of the brainstem (A), 16 cases at the back of the brainstem (B), and 13 cases were located laterally to the brainstem (S). There were 15 cases located superior to the VA (S), 49 cases were inferior (I), and 12 cases were mixed type (M). Among 76 cases, 71 cases were resected with Simpson grade 2 (93.42%), 3 with Simpson grade 3 (3.95%), and 2 with Simpson grade 4 (2.63%). We summarized four anatomical triangles: triangles SOT, VOT, JVV, and TVV. The mean postoperative Karnofsky performance score was improved in all patients (p < 0.05). However, several complications occurred, including hoarseness and CSF leak. Conclusion ABS and SIM classifications are objective indices for choosing the surgical approach and predicting the difficulty of FMMs, and it is of great importance to master the content, position relationship with the tumor, and variable anatomical structures in the four “triangles” for the success of the operation.

    وصف الملف: electronic resource

  3. 3
    دورية أكاديمية

    المصدر: Interdisciplinary Neurosurgery, Vol 31, Iss , Pp 101693- (2023)

    الوصف: Tumors at the craniocervical junction represent a formidable challenge due to its intimate association with the medulla and cervical spinal cord, lower cranial nerves, and vertebral artery (VA). Foramen magnum meningioma (FMM) reparents 2% of all intracranial meningiomas and 4% of posterior fossa meningiomas. The far lateral approach is preferred for FMM with VA involvement. Here, we describe a case of a 58-year-old woman who presented with headache, nausea and vomiting and gait disturbance and was found to have large FMM encasing the dominant VA. The patient was treated with a left far lateral approach with limited condylectomy resulting in gross total resection and preservation of lower cranial nerves function.

    وصف الملف: electronic resource

  4. 4
    دورية أكاديمية

    المصدر: Interdisciplinary Neurosurgery, Vol 23, Iss , Pp 100899- (2021)

    الوصف: Meningeal melanocytic meningiomas are rare tumors and have an estimated incidence of 1 per 10 million. These tumors arise from the leptomeningeal melanocytes, which are derived from the neural crest cells during embryonic life. We present a case of 50 year old male who presented with neck pain without any neurological deficit. MRI showed a dural based contrast enhancing lesion and underwent surgical excision. Histopathology was suggestive of melanocytic meningioma, which is a rare histological type of meningioma.

    وصف الملف: electronic resource

  5. 5
    دورية أكاديمية

    المصدر: Brazilian Neurosurgery, Vol 37, Iss 04, Pp 334-338 (2018)

    الوصف: Foramen magnum meningiomas cause different symptoms based on the size and the location of the tumor. They often present with involvement of the long tracts and of the lower cranial nerves. Ataxia and occipitocervical headache are other common symptoms. In the present study, we report a case of foramen magnum meningioma presenting with cough syncope. A mass lesion located anterolateral to the foramen magnum was detected in a 38-year-old man during a magnetic resonance imaging (MRI) exam; the lesion extended from the inferior clivus to the level of the C2 vertebra. The neural axis has pushed towards posterior and contralateral side by the mass. We think that syncope occurred due to the encasement of the vertebral arteries by the tumor in addition to the compression of the neural axis. The posterolateral approach without condylar resection provides a safe surgical plane for total excision of these tumors. In our case, the tumor was totally removed and the syncope episodes were resolved.

    وصف الملف: electronic resource

  6. 6
    دورية أكاديمية

    المصدر: Brazilian Neurosurgery, Vol 37, Iss 04, Pp 362-366 (2018)

    الوصف: Foramen magnum (FM) tumors represent one of the most complex cases for the neurosurgeon, due to their location in a very anatomically complex region surrounded by the brainstem and the lower cranial nerves, by bony elements of the craniocervical junction, and by the vertebrobasilar vessels. Currently, the open approach of choice is a lateral extension of the posterior midline approach including far lateral, and extreme lateral routes. However, the transoraltranspharyngeal approach remains the treatment of choice in cases of diseases affecting the craniocervical junction. For very selective cases, the endoscopic endonasal route to this region is another option. We present a case of a ventral FM meningioma treated exclusively with the endoscopic endonasal approach.

    وصف الملف: electronic resource

  7. 7

    المصدر: Balneo and PRM Research Journal, Vol 12, Iss 3, Pp 280-283 (2021)

    الوصف: Meningiomas located in the foramen magnum area are uncommon. We report the case of a patient with a mass lesion compressing the medulla, who was admitted to the Neurology Department for cervical pain and tetraparesis. On the MRI (Magnetic Resonance Imaging) examination, specific features for a meningioma were described, confirmed later by the histopathological examination. The patient presented a favorable evolution, at only one month after surgery. Keywords: Meningioma, Tetraparesis, Foramen Magnum, Neurosurgery

  8. 8

    المصدر: World Neurosurgery. 146:e1242-e1254

    الوصف: Background This study established novel technique nuances in surgery for ventral foramen magnum meningiomas (vFMMs) via a dorsal lateral approach. Methods From July 2012 to July 2019, 37 patients with vFMMs underwent tumor resection surgery and were operated on with a dorsal lateral approach. Two safe zones were selected as the entrance of the surgical corridor. Safe zone I was located between the dural attachment of the first dental ligament (FDL) and the branches of C1; safe zone II lay between the dural attachment of the FDL and the jugular foramen. The tumor was debulked first through safe zone I and then through safe zone II. The tumor was removed through a trajectory from the caudal to cephalad to allow tumor debulking from below and downward delivery, away from the brainstem and lower cranial nerves. Results Thirty-three patients underwent gross total resection, and 4 patients underwent subtotal resection. Four patients transiently required a nasogastric feeding tube. All patients recovered within 3 months postoperatively. Three patients (8.1%) developed permanent mild hoarseness and dysphagia as a result of postoperative damage of cranial nerves IX and X. One patient underwent tracheotomy. No patient experienced tumor recurrence during the follow-up period. Conclusions We established a minimal retraction principle, in which the selection of 2 safe zones as the entrance of the surgical corridor, tumor removal from the inferior to superior direction, and debulking followed by devascularization were the key elements to implement the minimal retraction principle in vFMM surgery.

  9. 9

    المصدر: Neurosurgical Review. 44:2667-2673

    الوصف: Outcomes of 37 patients of foramen magnum meningioma (FMM) were evaluated, and the related literature was reviewed to determine the efficacy of Gamma Knife radiosurgery (GKRS) for treating patients with FMM. We present the largest series reported from a single institution with the longest follow-up to date. The database of patients who underwent GKRS for FMM between 2007 and 2019 was evaluated retrospectively. A total of 37 patients with radiological and pathological features consistent with FMM were included in this series. Thirty-three patients were female, and 4 were male. The median age was 58 years (range, 23–74 years). The most common symptom at diagnosis was headache (64.9%). Twelve patients had a history of microsurgical resection. The median duration from the initial onset of symptoms to GKRS was 12 months (range 1–140 months). Among the 37 tumors, eight (21.6%) were located ventrally, 24 (64.9%) laterally, and five (13.5%) dorsally. The median target volume was 3.30 cm3 (range, 0.6–17.6 cm3). Thirty-five patients (95%) were treated with single fraction GKRS, and two patients (5%) were treated with hypofractionated GKRS. The median clinical follow-up was 80 months (range, 18–151 months), while the median radiological follow-up was 84 months (range, 18–144 months). At the last clinical follow-up after GKRS, 27 patients (73%) had improved symptoms, and none had worsened pre-GKRS symptoms. At the last radiological follow-up after GKRS, 23 tumors (62.2%) remained stable, 13 (35.1%) decreased in size, and 1 (2.7%) increased in size. Tumor control, including stable and regressed tumors, was achieved in 97.3% of patients. Our cohort demonstrates that GKRS is an effective and safe treatment for patients with either primary or recurrent/residual FMM.

  10. 10

    المصدر: Indonesian Journal of Physical Medicine and Rehabilitation. 8:43-49

    الوصف: Introduction: Foramen magnum meningioma is a rare case. The incidence is 0.3% - 3.2% of all meningiomas. Clinical manifestations of foramen magnum meningioma are atypical and unpredictable. The main therapy for foramen magnum meningioma is surgery. The role of rehabilitation becomes important in the process after surgery. Case Presentation: A 46 years old female had weakness and loss of sensory of her upper and lower limbs, accompanied by urinary retention and constipation in the last 2 month, categorized by ASIAimpairment scale (AIS) C neurological level of injury at C2. Cervical MRI with contrast showed the impression of an extramedullary intradural mass as high as the inferior aspect of the pons to the corpusvertebrae cervical 1 supports the picture of meningiomas. The rehabilitation programs after surgery were active assistive range of motion exercise progressing to active range of motion, neuromuscular electrical stimulation, sensory stimulation and bladder and bowel training. Conclusion: The patient’s expectation for returning to independency is a long-term goal of the rehabilitation program. After definitive therapy (surgery) is conducted, medical rehabilitation management can be done as early as possible to achieve the optimum functional recovery. Muscle strengthening, sensory stimulation and bladder/bowel training improved motor , sensory and autonomic function.