Publications by authors named "Sumire Echizenya"
Article Synopsis
- Glioblastoma is a highly aggressive brain tumor known for its low oxygen levels, prompting researchers to examine how glucose metabolism operates under these hypoxic conditions using advanced PET imaging techniques.* -
- A study involving 33 glioblastoma patients identified a specific gene, G6PC3, that shows increased expression in hypoxic tumor environments and correlates with glucose metabolism as indicated by imaging results.* -
- The research further found that higher levels of G6PC3 are associated with poorer patient prognosis, particularly in those who underwent complete tumor removal and survived less than a year.*
Objective: CD44 is a major cell surface receptor involved in cell adhesion and migration. The overexpression of CD44 is a poor prognostic factor in many neoplasms, including meningiomas. The aim of this study was to investigate the association between CD44 gene expression and clinical signatures of primary meningiomas.
View Article and Find Full Text PDFPositional vertebral artery occlusion(PVAO)is a mechanical occlusion of the extracranial vertebral artery(VA)due to physiological movement of the head and neck. However, only a few cases of mechanical VA compression due to routine flexion-extension of the neck have been reported. We present a unique case of PVAO due to neck extension with an occipital condylar spur.
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- Endovascular thrombectomy (EVT) is the main treatment for acute ischemic stroke (AIS), but outcomes for patients with cancer undergoing this procedure are not well understood.
- A study analyzed 12 cancer patients who underwent EVT between January 2015 and April 2019, finding that 10 achieved good blood flow restoration.
- Although some patients had positive short-term outcomes, long-term survival was poor, with most dying within a year due to cancer progression, indicating that careful consideration is needed before proceeding with EVT in these cases.
Introduction: Fourth ventricle outlet obstruction (FVOO) is a rare cause of obstructive hydrocephalus. We describe a case of idiopathic FVOO that was successfully treated with endoscopic third ventriculostomy (ETV).
Case Report: A 3-year old boy without any remarkable medical history presented with a headache and vomiting.
Cerebellopontine angle tumors might occasionally provoke trigeminal neuralgia but are usually large enough to be diagnosed radiographically. We present a case of trigeminal neuralgia caused by a very small meningioma covering the suprameatal tubercle that displayed hyperostosis at the entrance of Meckel's cave and was not obvious on routine magnetic resonance (MR) images. A 72-year-old woman with intractable trigeminal neuralgia in the left V3 territory was referred to our institution.
View Article and Find Full Text PDFResolution of acute epidural hematoma (AEDH) usually takes several weeks. The authors present an infantile case of AEDH that rapidly decreased within a day and review the literature. A 7-month-old boy fell from a height of approximately one meter and sustained a head injury.
View Article and Find Full Text PDFReversible cerebral vasoconstriction syndrome(RCVS)is characterized by severe headache and diffuse segmental constriction of cerebral arteries that resolves spontaneously within a few months. Although manifestations of stroke are not included in diagnostic criteria of RCVS, it is known that some cases may be associated with stroke, including intracerebral hemorrhage, subarachnoid hemorrhage, or cerebral infarction. We present three cases of RCVS associated with various types of stroke, and then review the literature.
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