نتایج جستجو برای: brain tumor grade
تعداد نتایج: 1002888 فیلتر نتایج به سال:
in 1890, coley observed that cancer patients who developed infections had smaller tumors. from this, he developed coley’s toxin and treated tumors with injections of infectious materials. in 1960s, mahaley used monoclonal antibodies to treat central nervous system(cns) tumors, that research and clinical investigations in brain tumor immunotherapy became a serious undertaking. there are severa...
background: central nervous system (cns) tumors have accounted for approximately one fourth of all pediatric malignancies. cns tumors have been the most common solid malignancies among the children. in this study, we have evaluated survival and prognostic factors in children with non-brain stem astrocytoma. methods: children with non-brain stem astrocytoma, referring to radiation oncology cente...
The anaplastic oligodendrogliomas are uncommon gliomas. It is clinically significant to know this entity as they have unique clinical, histopathological and molecular features. We present a 43 year female having complaint of headache, tingling numbness, giddiness. Which was 2 duration, off on, increased in last 15 days. MRI brain (plain + contrast) showed large heterogenously enhancing cortical...
Background: Most studies have shown that there are association between the development and malignancy of brain tumors and tumor suppressor genes and oncogenes. The aim of this project was to investigate the P53 gene mutations in exon 8 in patients with astrocytoma type’s brain tumor. Methods: In this present survey, The DNA isolation from 30 samples of brain tissue was done by phenol-c...
brain tumors in elderly are increasing as the number of people, who comprise the older population, does.about half of the patients with brain tumors appear to be over 60 years of age.in this review article, glioblastoma multiform, as the most common malignant tumor of the central nervous system in elderly is discussed in details of definition, prognosis, diagnosis, treatment and differential di...
Gross total resection (GTR) of glioma is critical for improving the survival rate of glioma patients. One of the greatest challenges for achieving GTR is the difficulty in discriminating low grade tumor or peritumor regions that have an intact blood brain barrier (BBB) from normal brain tissues and delineating glioma margins during surgery. Here we present a highly sensitive, label-free teraher...
frequency of common etiologies of adult onset epilepsy is different in various studies. the aim of this study is to evaluate the frequency of common etiologies of late adult onset epilepsies. all patients referred to razi and imam khomeini hospitals in the year 2003 with at least two seizure attacks beginning after age of 50 were evaluated. in the majority of cases neuroimaging, electroence...
Malignant gliomas are associated with high mortality due to infiltrative growth, recurrence, and malignant progression. Even with the most efficient therapy combinations, median survival of the glioblastoma multiforme (grade 4) patients is less than 15 months. Therefore, new treatment approaches are urgently needed. We describe here identification of a novel homing peptide that recognizes tumor...
Introduction Brain tumor is due to the growth of abnormal cells in the brain. Brain tumor in its final stage is converted as brain cancer, which leads to death. Survival rate can be increased if the tumor is detected and diagnosed in the initial stages. The detection of the tumor in MR images of the brain can be done using segmentation. These brain tumors exist in different types which make the...
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