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pleomorphic xanthoastrocytoma in the lateral ventricle with extensive subarachnoid dissemination： report of a case and review of the literature

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Chinese Medical Journal 2012年第2期125卷 396-399页

作者： Yang Wan-qun Huang Biao Liang Chang-hong Guangdong Acad Med Sci Guangdong Gen Hosp Dept Radiol Guangzhou 510080 Guangdong Peoples R China

pleomorphic xanthoastrocytoma （PXA） is a rare benign tumor that is usually located in the superficial cerebral *** reports of PXAs have included only a single case or small ***,the data with respect to the natural history of this tumor are *** report a case of a PXA in the unusual location of the right lateral ventricle with extensive subarachnoid *** our knowledge,this is a rare case of PXA in the lateral *** addition,extensive subarachnoid space dissemination of this distinctly benign type of glioma is exceedingly *** our case,there was meningeal dissemination and metastases to the bilateral trigeminal nerves and oculomotor *** neuroradiographic features,tumor location,and dissemination were reviewed.

关键词： pleomorphic xanthoastrocytoma brain neoplasms lateral ventricles metastasis

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Extra-Axial Anaplastic pleomorphic xanthoastrocytoma Mimicking Meningioma: A Case Report with Literature Review

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Open Journal of Modern Neurosurgery 2024年第3期14卷 203-211页

作者： Kaoutar Stitou Ilias Zahir Oualid Mohammed Hmamouche Marouane Hammoud Faycal Lakhdar Mohammed Benzagmout Khalid Chakour Mohammed El Faiz Chaoui Department of Neurosurgery University Hospital of Fez Fez Morocco

Background: A number of meningeal neoplastic lesions may radiologically and clinically simulate meningioma, include hemangiopericytomas, solitary fibrous tumors, schwannomas, hematolymphoid lesions, metastases, and others very rarely, also may clinically mimic meningiomas. Case Description: We present the case of A 28-year-old male patient, with no notable medical history, who presented with worsening headaches for 3 months, imbalance, and visual deficits, An initial MRI revealed extra-axial lesion involving the right Parieto-occipital, The tumor was hypointense on T1-weighted MR images, hyperintense signals on T2-weightedMR images, and heterogeneously enhanced suggestive of a meningioma, total resection was achieved, and the histopathological analysis confirmed the diagnosis of an angioblastic meningioma. However, 15 months later, the patient presented with the same initial visual complaints. A subsequent MRI showed lesion recurrence, leading to a second surgical intervention. The histopathological analysis confirmed the diagnosis of an anaplastic xanthoastrocytoma. Conclusion: This represents an unusual location for an anaplastic pleomorphic xanthoastrocytoma, which should broaden the differential diagnosis of extra-axial lesions.

关键词： Anaplastic Features BRAF Extra-Axial High Mitotic Rate High Proliferation Index Meningeal pleomorphic xanthoastrocytoma

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A 7-year-old boy with recurrent cyanosis and tachypnea:A case report

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World Journal of Clinical Cases 2022年第20期10卷 6974-6980页

作者： Shu Li Li-Na Chen Lin Zhong Department of Pediatric Pulmonology and Immunology West China Second University Hospital of Sichuan UniversityChengdu 610066Sichuan ProvinceChina Key Laboratory of Birth Defects and Related Diseases of Women and Children Ministry of EducationWest China Second University Hospital of Sichuan UniversityChengdu 610066Sichuan ProvinceChina

BACKGROUND Brain tumors are the most common solid tumors in children and comprise 25%of all malignancies in *** presentations include headache,nausea and vomiting,gait abnormality,papilledema,and epileptic seizure;however,some symptoms can be very insidious,with atypical and misleading *** SUMMARY Here,we report a 7-year-old boy who presented with recurrent cyanosis and tachypnea after exercise for 2 *** body mass index was 26.43 kg/***,blood gas analysis,biochemical parameters,chest computed tomography scan,and echocardiograph suggested type II respiratory failure,pulmonary heart disease,and mild liver ***-invasive breathing support,antibiotics,and anti-heart failure therapy were *** patient’s pulse oxygen saturation increased to over 95%when he was awake but dropped to 50%-60%,accompanied by cyanosis,during sleep while receiving high-flow nasal cannula ***-related breathing disorder was *** the intensive care unit,however,polysomnography was *** magnetic resonance imaging revealed a space-occupying(cerebellum and brainstem)lesion,which was later confirmed to be pleomorphic xanthoastrocytoma by surgery and histopathology by tissue *** When treating patients with cyanosis and tachypnea,a broad differential diagnosis should be considered,including brain tumor.

关键词： Respiratory failure Pulmonary heart disease Sleep-related breathing disorders pleomorphic xanthoastrocytoma Children Case report

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