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Middle meningeal artery embolization for chronic subdural hematoma in a young patient with refractory thrombocytopenia secondary to leukemia: more evidence for a paradigm shift? Illustrative case

Emalee J. Burrows, Seng Chye Lee, Omar K. Bangash, Timothy J. Phillips, and Sharon Lee

subdural hematoma: meta-analysis and systematic review . World Neurosurg . 2019 ; 122 : 613 – 619 . 30481628 5 Feghali J , Yang W , Huang J . Updates in chronic subdural hematoma: Epidemiology, etiology, pathogenesis, treatment, and outcome . World Neurosurg . 2020 ; 141 : 339 – 345 . 32593768 6 Edlmann E , Giorgi-Coll S , Whitfield PC , Carpenter KLH , Hutchinson PJ . Pathophysiology of chronic subdural haematoma: inflammation, angiogenesis and implications for pharmacotherapy . J Neuroinflammation . 2017 ; 14 ( 1 ): 108

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High-flow bypass for giant dolichoectatic vertebrobasilar aneurysms: illustrative cases

Richard Shaw, Alistair Kenneth Jukes, and Rodney Stewart Allan

embolism; PICA = posterior inferior cerebellar artery; pst = posterior; SDH = subdural hematoma; TL/TC = translabyrinthine/transcochlear; VPS = ventriculoperitoneal shunt. High-Flow Bypass Technique Both patients had insufficient posterior communicating artery collateral supply. Consequently, we elected to perform an ECA-to-PCA (P2) high-flow bypass to initially establish an alternative posterior circulation before proximal Hunterian ligation. Although a detailed description of this surgical technique has been published previously, 12 we herein describe

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Novel use of an image-guided supraorbital craniotomy via an eyebrow approach for the repair of a delayed traumatic orbital encephalocele: illustrative cases

Joseph Ifrach, Nathaniel B Neavling, Iris B Charcos, Linda Zhang, and Corey M Mossop

the left side with a GCS score of 7T. The right pupil was reactive and 2 mm, and the left pupil was ovoid and unreactive. A CT of the head revealed small bilateral subdural hematomas, a right frontal contusion, and bifrontal skull fractures with a right orbital roof blowout fracture with herniation of the superior rectus muscle and brain through the orbital defect. A concomitant right lower-extremity fracture that would ultimately require surgical fixation was also present. A left frontal fiber optic intracranial pressure monitor was placed uneventfully on his

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Nontraumatic symptomatic de novo arachnoid cyst in an adolescent patient treated with cystoperitoneal shunting: illustrative case

Angelica M Fuentes, Jonathan J Yun, and John A Jane Jr.

. One less frequently reported cause of arachnoid cysts is chronic ventricular shunting. One case report described such a patient who developed subdural hematoma and arachnoid cyst after having had a ventriculoperitoneal shunt in place for approximately 7 years. 17 Although possible, CSF overdrainage is not likely the cause of arachnoid cyst development in the present case. Other signs of CSF overdrainage, including decreased ventricular caliber and the formation of subdural collections, were not observed in our patient. To date, there has been no reporting of

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Preoperative examination and intraoperative cerebrospinal fluid leakage test for minimally invasive surgery of spinal extradural arachnoid cysts: illustrative case

Yoshihiro Sunada, Kenji Yagi, Yoshifumi Tao, Hirotake Nishimura, and Tomohito Hishikawa

patient should be carefully checked after the myelography. Spinal hematoma, such as epidural or subdural hematoma, is a rare complication that can occur in 0.2% of lumbar punctures. 23 When the patient has coagulopathy or is receiving antithrombotic drugs, these procedures should be carefully applied. These preoperative examinations are necessary for minimally invasive surgery in patients with SEACs. The risk and severity of complications may be higher in an extensive surgery than in a selective surgery following these examinations. Therefore, we propose that

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Management of a recurrent spinal arachnoid cyst presenting as arachnoiditis in the setting of spontaneous spinal subarachnoid hemorrhage: illustrative case

Omar Hussain, Randall Treffy, Hope M Reecher, Andrew L DeGroot, Peter Palmer, Mohamad Bakhaidar, and Saman Shabani

Spinal subarachnoid hemorrhage (SSAH) can present from a multitude of etiologies. Most cases are posttraumatic or iatrogenic in nature, whereas few are spontaneous due to an underlying vascular malformation or coagulopathy. 1 A potential pathogenic mechanism for SSAH can involve the rupture of vasculature within the subdural or subarachnoid space, potentially after a posttraumatic increase in intraabdominal or thoracic pressure. 2 The remaining etiological category is spontaneous SSAH, for which several case series of spinal subdural hematomas of