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Pachymeningeal en plaque metastasis from gastric cancer mimicking subdural hematoma: illustrative case

Hsuan-Yi Wu, Chee-Tat Lam, Ai Seon Kuan, Tong-Jong Chen, Chen-Shu Wu, and Ming-Cheng Tsai

after thoracoscopic segmentectomy in 2016 without recurrence. In March 2021, he presented with progressive right hemiparesis, and noncontrast computed tomography (CT) scanning of the brain revealed a left frontal-parietal-temporal chronic subdural hematoma (SDH) ( Fig. 1A and B ). After burr hole drainage was performed, the patient’s symptoms improved. In September 2021, the patient was admitted to our hospital because of hematemesis. Upper gastrointestinal pan-endoscopy revealed bleeding from malignant gastric ulcers in the gastric cardia. Hemostasis was achieved

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Multifocal primary central nervous system angiosarcoma: illustrative case

Satoshi Hirai, Yoshifumi Tao, Hirotake Nishimura, Kiyoshi Nakazaki, and Masaaki Uno

. 26697580 12 Drosos E , Kalyvas A , Komaitis S , Angiosarcoma-related cerebral metastases: a systematic review of the literature . Neurosurg Rev . 2020 ; 43 ( 4 ): 1019 – 1038 . 31165296 13 Kanazawa T , Miwa T , Akiyama T , A case of aggressive recurrent intracranial subdural hematoma associated with angiosarcoma originating from the skull . World Neurosurg . 2019 ; 126 : 120 – 123 . 30862578 14 Al-Salam S , Balalaa N , Faour I , Akhter S , Alashari M . HIF-1α, VEGF and WT-1 are protagonists in

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Chronic expanding pituitary hematoma with calcification resulting from pituitary adenoma: illustrative case

Fugen Takagi, Ryokichi Yagi, Takuya Kanemitsu, Yuichiro Tsuji, Naokado Ikeda, Naosuke Nonoguchi, Motomasa Furuse, Shinji Kawabata, Toshihiro Takami, and Masahiko Wanibuchi

consistent with those above. The underlying mechanism is supposedly similar to that of a chronic subdural hematoma, and the pathophysiology resulting in hematoma enlargement, a contemplative cycle of hemorrhage, coagulation, fibrinolysis, and rebleeding from the neovascular outer membrane. In contrast to acute-onset PA, this patient showed visual deterioration due to slow cystic enlargement, and a serous dark reservoir was observed within the cyst. Combined pathological examination resulted in diagnosis of CEEH after pituitary stroke associated with pituitary adenoma. In

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Resection of disseminated recurrent myxopapillary ependymoma with more than 4-year follow-up: operative nuance for prolonged prone position. Illustrative case

Reid A. Johnson, Samuel W. Cramer, Kathryn Dusenbery, and Uzma Samadani

Loss, the North American Neuro-Ophthalmology Society, and the Society for Neuroscience in Anesthesiology and Critical Care . Anesthesiology . 2019 ; 130 ( 1 ): 12 – 30 . 29 Balser D , Farooq S , Mehmood T , Reyes M , Samadani U . Actual and projected incidence rates for chronic subdural hematomas in United States Veterans Administration and civilian populations . J Neurosurg . 2015 ; 123 ( 5 ): 1209 – 1215 . 10.3171/2014.9.JNS141550 30 Mishra A , Sadashiva N , Krishna U , Disseminated craniospinal myxopapillary