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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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Arachnoid cyst alone causes hemifacial spasm: illustrative case

Ko Ozaki, Yoshinori Higuchi, Shigeki Nakano, Kentaro Horiguchi, Iwao Yamakami, and Yasuo Iwadate

; NVC = neurovascular conflict; PICA = posterior inferior cerebellar artery. Secondary HFS and Differential Diagnosis of the Cystic Lesion For cystic tumors in the CPA, differential diagnoses include schwannoma, endodermal sinus tumor (neurenteric cyst), hemangioblastoma, cavernous malformation, meningioma, teratoma, epidermoid cyst, cysticercus, and ependymal cyst. 14–24 In the present case, MRI revealed a cystic tumor without any enhancement by the gadolinium-contrast agent. Epidermoid cysts, endodermal sinus tumors, and ependymal cysts are typically

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Frontal intradiploic encephalocele in a 44-year-old male patient: illustrative case

Baran Atli, Sebastian Rath, Johannes Burtscher, Johannes A. Hainfellner, and Simon Hametner

, dermoid cysts, or metastasis. The absence of overt malignancy features, the preserved integrity of the outer skull table, and the presence of leptomeninges in the lesion may imply benign cystic lesions such as intraosseous leptomeningeal cysts or intradiploic arachnoid cysts. 14 However, none of these lesions enclose the cerebral parenchyma, which is characteristic of the intradiploic encephalocele. Here, we describe a case of a right frontal intradiploic encephalocele in a 44-year-old man with localized meningothelial proliferation reminiscent of meningioma and trauma

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Glioblastoma with concomitant moyamoya vasculopathy in neurofibromatosis type 1: illustrative case

Satoru Tanioka, Masaya Fujiwara, Tetsushi Yago, Katsuhiro Tanaka, Fujimaro Ishida, and Hidenori Suzuki

moyamoya vasculopathy have been reported. 4 , 5 , 7–10 , 13 , 15 , 16 The median age was 9 years (range, 3–66 years); the most common tumor type was craniopharyngioma, followed by meningioma; the median radiation dose was 48 Gy (range, 46–60 Gy); the median follow-up period was 7 months (range, 0–60 months); and only one case experienced a progressive decrease in cerebral blood flow during the 18-month follow-up period. However, on the one hand, because the number of cases and the follow-up period are limited, and because the radiation dose and location differ between

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Spontaneous rupture of an arachnoid cyst in an adult: illustrative case

Lydia A. Leavitt, Pranav Nanda, Anat Stemmer-Rachamimov, Gavin P. Dunn, and Pamela S. Jones

left middle cranial fossa with a maximal length of 5 cm and maximal width of 2 cm with smooth remodeling of the superjacent frontal and temporal calvaria. This lesion was causing a 9-mm midline shift to the right with effacement of the left lateral ventricle, entrapment of the right lateral ventricle, and uncal herniation. Differential diagnoses included hemorrhagic meningioma versus hemorrhagic intrinsic tumor, including a low-grade glioma versus a ruptured arachnoid cyst. After returning to the emergency department from the CT scanner, the patient’s exam was noted

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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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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

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Endoscopic resection of a giant colloid cyst in the velum interpositum: illustrative case

Mahdi Arjipour, Mohammad Gharib, and Mohamadmehdi Eftekharian

. Neuroendoscopic Transventricular Approach for Cystic Craniopharyngioma . Cureus . 2021 ; 13 ( 9 ): e18123 . 6 Salehipour A , Sabahi M , Arjipour M , Borghei-Razavi H . Concurrence of craniopharyngioma and meningioma: a case report and systematic review of the literature . Br J Neurosurg . 2021 ; 1 – 6 . 10.1080/02688697.2021.1937520 7 Al-Sharydah AM , Al-Suhibani SS , Al-Abdulwahhab AH , Al-Aftan MS , Gashgari AF . A unique finding of cavum velum interpositum colloid-like cyst and literature review of a commonplace lesion in an

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Microsurgical resection of a ruptured intraventricular arteriovenous malformation in a neonate: considerations in management. Illustrative case

Lauren Stone, Reid Colliander, Melissa A LoPresti, Ali Shaibani, and Sandi Lam

Raets M , Dudink J , Raybaud C , Ramenghi L , Lequin M , Govaert P . Brain vein disorders in newborn infants . Dev Med Child Neurol . 2015 ; 57 ( 3 ): 229 – 240 . 37 Andrews JP , Arora T , Theodosopoulos P , Berger MS . Paramedian transparietal approach to a dominant hemisphere intraventricular meningioma: illustrative case . J Neurosurg Case Lessons . 2021 ; 2 ( 7 ): CASE21292 . 38 Ellenbogen RG . Transcortical surgery for lateral ventricular tumors . Neurosurg Focus . 2001 ; 10 ( 6 ): E2 . 39 Ogilvy CS