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...

Medical Image segmentation is to partition the image into a set of regions that are visually obvious and consistent with respect to some properties such as gray level, texture or color. Brain tumor classification is an imperative and difficult task in cancer radiotherapy. The objective of this research is to examine the use of pattern classification methods for distinguishing different types of...

Abstract Control of breast to brain metastasis remains an urgent unmet clinical need. While chemotherapies are essential in reducing systemic tumor burden, they have also shown promote non-brain metastatic invasiveness and drug-driven neurocognitive deficits through formation neurofibrillary tangles (NFT) independently. Now, this study we investigated the effect chemotherapy on progression prom...

Meningioma is the second most common brain tumor. The extent of peritumoral brain edema (PTBE) is one of the important prognostic factors in patients with meningioma.A 55-year-old female patient suffering from a progressive severe headache and mild left hemiparesis was referred to the Department of Neurosurgery, Rasool Akram Hospital (Tehran, Iran). The preoperative imaging revealed a 2×2 cm so...

glioma, as a primary tumor of central nervous system, is the main cause of death in patients with brain cancer. therefore, development of an efficient strategy for treatment of glioma is worthy. the aim of the current study was to develop a srl peptide-coated dendrimer as a novel dual gene delivery system for targeting the lrp receptor, an up-regulated gene in both bbb and glioma cells. to perf...

Brain stem glioma is one of the diseases CNS. It brain and spinal cord tumor. a type tumor caused when healthy cells in change increase abnormally forms mass that called as This may be malignant. grows spread other parts body. Glioma tumor, it from glial cell supportive brain. A 13 year old male patient presented neurology ward with chief complaint difficulty chewing swallowing food, drooping f...

Glioblastoma is one of the most common primary brain tumors (80% of patients) that has a poor prognosis due to malignancy. Glioblastoma has an annual incidence of 5.26 per 100 000 population or 17 000 new diagnoses per year and so as the population aging, the number of patients is expected to increase. There is a growing body of literature investigating the tumor microenvironmenta...

Introduction: Hydrocephaly is a common complication of intra ventricular brain tumors. The aim of this study was to determine, demographic and clinical features and type of hydrocephaly before and after surgical interventions in patients with intra ventricular brain tumor surgery. Material and methods: In a cross-sectional study, 100 patients with intra ventricular brain tumors who were candid...

introduction: behcet's disease is a chronic disease with multisystem involvement characterized clinically by oral and genital aphthae, cutaneous lesions and ophthalmologic, neurologic and gastrointestinal manifestation. nervous system involvement occurs in 5.3 – 30% of patients, mostly in brain stem and basal ganglia. the common manifestations are pyramidal signs, central nervous plegia, p...

introduction: meningioma is a benign and slowly-growing tumor that is responsible for 20% of brain neoplasms. it can be accompanied by some genetic disorders such as neurofibromatosis type 2 and is more common among women. as a space occupying lesion, it produces a wide range of signs and symptoms by compressing the adjacent and underlying tissues in the brain. trauma and viruses are possible e...