نتایج جستجو برای: clear cell ependymoma
تعداد نتایج: 1844055 فیلتر نتایج به سال:
5-aminolevulinic acid fluorescence-guided resection of intramedullary ependymoma: report of 9 cases.
BACKGROUND Resection guided by 5-aminolevulinic acid (5-ALA) fluorescence has proved to be useful in intracranial glioma surgery. However, the effects of 5-ALA on spinal cord tumors remain unknown. OBJECTIVE To evaluate the usefulness of 5-ALA fluorescence-guided resection of intramedullary ependymoma for achieving maximum tumor resection. METHODS This study included 10 patients who underwe...
IntroductIon Tanycytic ependymoma is a rare subtype of the World Health Organization Grade II ependymoma most commonly found in the cervical and thoracic segments of the spinal cord. Spinal tumors in neurofibromatosis type 2 (NF‐2) can be intramedullary, extramedullary, or associated with the nerve roots, and there may be multiple tumors at multiple locations in the spine. The histology of thes...
BACKGROUND Ependymomas usually arise from the ventricular surface. METHODS We report an 11-year-old female who presented with a supratentorial ectopic ependymoma. RESULTS The patient presented with a two-month-history of progressive headache, nausea and vomiting. Examination revealed papilledema, horizontal nystagmus, diplopia on upward gaze, and right pronator drift. CT scan showed an enha...
OBJECTIVE To show the main findings for anaplastic ependymoma on MRI. MATERIAL AND METHODS We reviewed all patients diagnosed with anaplastic ependymoma at our tertiary hospital during a six-year period. We recorded the MRI findings for this type of tumor (on conventional sequences following the protocol for the study of CNS tumors, diffusion-weighted imaging, contrast-enhanced sequences, and...
Astrocytoma, ependymoma, and oligodendroglioma classification with deep convolutional neural network
Glioma as one of the most common types brain tumor in world has three different classes based on its cell types. They are astrocytoma, ependymoma, oligodendroglioma, each characteristics depending location and malignance level. Radiological examination by medical personnel is still carried out manually using magnetic resonance imaging (MRI) imaging. Brain structure, size, various forms tumors i...
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