background and purpose: cancer and cerebrovascular accidents (cva) are two most common causes of mortality and morbidity in the elderly. patients with brain tumor can be highly affected by postsurgical stroke. cva may be the first manifestation in these patients . therefore, we aimed to assess the epidemiological factors affecting cva after brain surgery. methods: in this cross-sectional study ...

gliomas account for almost 80% of primary malignant brain tumors in adults. magnetic resonance imaging (mri) is still the gold standard for diagnosis of brain tumors and brain 99mtc-tetrofosmin single photon emission computed tomography (99mtc-tetrofosmin-spect) has been established as a useful tool for their evaluation. fluorine-18–2-fluoro-2-deoxy-d-glucose positron emission tomography/comput...

Primary central nervous system lymphoma (PCNSL) is a rare cancer that confined to the brain, spinal cord, leptomeninges and eyes. The origin of this type of lymphoma is often type B lymphocytes, and because the central nervous system (CNS) has no lymph nodes or lymphatic vessels, the cause of PCNSL is still uncertain (1). But its source appears to be from lymphocytes located in the CNS (2). Thi...

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 ...

Glioblastoma multiform(GBM) is the most prevalent primary brain tumor. Exosomes are extracellular vehicles for exchanging information between various cell types including cancer and normal cells. Exosomes are indicative of pathophysiological conditions of brain tumors that could be used in diagnosis and prognosis of GBM. In tumors, exosomes could carry various molecules like several miRNAs and ...

abstract background: in vivo measurements of applied dose during radiotherapy treatment, is important to ensure accurate dose delivery to patients. uncertainty in dose delivery should fall within ±5% of the prescribed dose as recommended by icru. assessment of dose for radiotherapy applications performed with various types of detectors. in this study, semiconductor diodes were used which have s...

conclusions the agnor technique can be used to diagnose salivary gland tumors. results the chi-square test showed significant differences between tumor types and the numbers of agnors (p = 0.000) and between tumor types and areas of agnors (p = 0.000). objectives the purpose of this study was to determine the numbers and mean areas of the agnor dots in the 3 most common salivary gland tumors. m...