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Rare case of extracranial chordoid meningioma adjacent to the carotid sheath: illustrative case

Seung W. Jeong, Michael Moran, Shahed Elhamdani, Dorian M. Kusyk, Chen Xu, Kymberly Gyure, and Richard Williamson

Meningiomas are the most common benign tumors arising from within the central nervous system (CNS), comprising approximately 15% of intracranial and 25% of spinal tumors. 1 In rare cases (∼1%), they may arise outside the CNS, 2 and only 0.1% are thought to have metastatic seeding from an intracranial primary tumor. 3 The World Health Organization (WHO) has defined 15 histological meningioma subtypes that fall into a 3-tier grading system that stratifies recurrence risk. 4 Chordoid meningiomas are a rare grade 2 variant with regional histological patterns

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Mother and daughter with a SMARCE1 mutation resulting in a cervical clear cell meningioma at an identical location: illustrative cases

Valérie N. E. Schuermans, Ank van de Goor, Martinus P. G. Broen, and Toon F. M. Boselie

Meningiomas are tumors that arise from the dura mater and primarily occur in the brain and spinal cord. 1 Intradural extramedullary meningiomas are the most common, which account for approximately 45% of all intradural spinal tumors. 2 , 3 Extradural spinal meningiomas occur less frequently. 2 Meningiomas are generally benign tumors and are rarely malignant. Because these tumors grow slowly, symptoms often arise when the tumor is already fairly large. Meningiomas are commonly found in all regions of the skull and along the spinal cord. 3 , 4 The majority

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A retro-odontoid pseudotumor treated with fixation and tumor resection by the lateral approach: illustrative case

Yoshiaki Oda, Takamitsu Tokioka, and Toshifumi Ozaki

Pathological examination should be performed for differentiated diseases, including neoplastic lesions such as meningioma and chordoma. We report a case in which a lateral approach to the upper cervical spine in addition to posterior fusion was used because of the large size of the retro-odontoid pseudotumor. Magnetic resonance imaging (MRI) performed 5 months after the operation showed that the pseudotumor had completely disappeared. Illustrative Case History and Examination A 77-year-old man experienced neck pain and headache for 1 month and consulted his

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Orthostatic hypotension after cervicomedullary junction surgery: illustrative case

Kasper S. Jacobsen, Rico F. Schou, Frantz R. Poulsen, and Christian B. Pedersen

(amlodipine 5 mg daily) for hypertension. Twenty-three years before referral, the patient had undergone surgery for hemangioblastoma in the posterior fossa, and postoperatively he received a ventriculoperitoneal shunt. Three years before referral, the patient had undergone tumor surgery for a hemangioblastoma at the thoracolumbar junction of the spinal canal, and 1 year before referral, the patient had undergone craniotomy in the left temporal region for the removal of a World Health Organization grade I meningioma. After admission, magnetic resonance imaging (MRI

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A pure extradural hemangioblastoma mimicking a dumbbell nerve sheath tumor in cervical spine: illustrative case

José Piquer-Belloch, Ruben Rodríguez-Mena, José Luis Llácer-Ortega, Pedro Riesgo-Suárez, Vicente Rovira-Lillo, Alain Flor-Goikoetxea Gamo, Antonio Cremades-Mira, and Eva Llopis-San Juan

far. 5–8 Furthermore, there have been two cases of both intra and extradural dumbbell-shaped lesions found in the literature, 1 , 11 but this is the first description of a complete extradural dumbbell-shaped cervical HB. Consequently, the differential diagnosis of dumbbell-shaped cervical tumors presenting with intervertebral foramen enlargement should include schwannoma, meningioma, ependymoma, or metastasis but also nerve root HB with possible intradural extension. Most of the lesions will show low or iso-SI on T1Wis and high SI on T2Wis, with homogeneous

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Cervical intradural traumatic neuroma without history of trauma: illustrative case

Elias Elias, Kimmo J Hatanpaa, Matthew MacAllister, Ali Daoud, Charbel Elias, and Zeina Nasser

entirely submitted for histological evaluation. Microscopic slides from the specimen demonstrated frequent disorganized nerve twigs embedded in a dense fibrotic stroma ( Fig. 5 ). The nerve twigs were immunopositive for S-100 and neurofilament, as expected. Immunostains for meningothelial cells and meningioma were repeatedly negative on multiple blocks within the lesion (SSTR2, PR, EMA). An immunostain for STAT6, a marker for solitary fibrous tumor, was negative. An immunostain for CD31 highlighted blood vessels. A special stain for amyloid was negative (Congo red). An

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Large intramedullary bronchogenic cyst of the cervical spine: illustrative case

Adela Wu, Mahesh Patel, Dawn Darbonne, and Harminder Singh

highlighting smooth muscle myosin layer beneath epithelium. D: Image at magnification ×40 showing stratified columnar ciliated epithelium. Postoperative Course The patient was at his neurological baseline after the procedure. Postoperative MRI of the cervical spine at 6 weeks showed subtotal resection of the intramedullary lesion with interval decrease in the spinal cord syrinx ( Fig. 4 ). MRI of the brain and the thoracic and lumbar spine did not reveal any other abnormalities other than a small incidental meningioma located at the T6 level. The patient’s neck pain had

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Spinal arteriovenous malformation with a calcified nodule: illustrative case

Ping-Chuan Liu, Chung-Chia Huang, and Ching-Lin Chen

Spinal arteriovenous malformations (AVMs) are uncommon, and their pathogenesis is largely unknown. When the condition is left untreated, the prognosis for patients with associated neurological symptoms is poor. Calcified nodules in spinal lesions (e.g., meningioma and AVMs) are particularly rare. This article presents the case of a cervical spinal AVM with a calcified nodule in accordance with Consensus Surgical Case Report (SCARE) guidelines. 1 This article also includes a brief review of the relevant literature and a discussion of treatment options

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Anterior cervical transvertebral approach for resection of an intraspinal ventral lesion: illustrative case

Dongao Zhang, Tao Fan, Wayne Fan, and Xingang Zhao

Resection of ventral intradural spinal canal lesions may affect the spinal cord and adjacent intradural structures; thus, the selection of an appropriate approach and adequate exposure are of great importance for totally removing these lesions. Most ventral cervical spinal canal lesions are benign nerve sheath tumors, meningiomas, and enterogenous cysts. 1 During the past 15 years, posterolateral approaches through hemilaminectomy have been common, and low-risk procedures are usually performed by spinal neurosurgeons. 2 , 3 Sometimes, partial resection of

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Neglected cervical meningocele in an adult: illustrative case

Abolfazl Rahimizadeh, Seyed Ali Ahmadi, Ali Mohammadi Moghadam, Shaghayegh Rahimizadeh, Walter Williamson, Mahan Amirzadeh, and Sam Hajaliloo Sami

-thickness skin. 7–9 The meningoceles can be classified into cystic or true meningoceles and solid or rudimentary meningoceles. A true meningocele is a cerebrospinal fluid-containing soft mass connecting to the subarachnoid space via a patent stalk where rudimentary meningocele is a solid mass attached to the spinal cord via a fibrous stalk. 6 , 7 , 9–12 Rudimentary meningocele is composed of meningocytes and psammoma bodies easily misdiagnosed as skin meningiomas in pre-magnetic resonance imaging (MRI) era. 9–12 Both true and rudimentary cervical meningoceles are rare in