ependymomas are glial tumors originate from ependymal cells lining the ventricles and the central canal of the spinal cord. two thirds of ependymomas arise in the infratentorial or intraventriclesandone-third aredetected in supratentorial area. however supratentorial “cortical” ependymomas are veryuncommon. ependymomas are usually infratentorial, intraventricular tumor, including 2–9% of all ce...

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...

this report describes the case of a 56 year-old man with a history of diplopia. his brain imaging showed multiple lesions with a metastatic appearance, however all investigations to determine the primary source of malignancy were negative. the patient underwent a brain biopsy, which was positive for anaplastic astrocytoma, a rare tumor that should be considered in the differential diagnosis of ...

abstract the intraparenchymal schwannomas are very rare tumors with only 52 reported cases . we describe a 38 years old man with eight months history of poorly controlled seizures despite of medical therapy. on brain ct scan a 1.5 x 1.5 cm hypodense enhancing lesion was seen in right posterior-inferior frontal lobe. on brain mri the lesion was hypointense in t1 and hyperintense in t2 with homog...

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...

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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...

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