neurofibromatosis type 2 is an inherited disease. the main manifestation of the disease is the development of symmetric, non-malignant brain tumors in the region of the cranial nerve viii usually as schwannoma. we report here a 20-year-old woman with primary intracranial malignant nerve sheath tumor located in the left cerebellopontine angle. histologically, the tumor showed malignant spindle c...

Neurofibromatosis type 2 is an inherited disease. The main manifestation of the disease is the development of symmetric, non-malignant brain tumors in the region of the cranial nerve VIII usually as schwannoma. We report here a 20-year-old woman with primary intracranial malignant nerve sheath tumor located in the left cerebellopontine angle. Histologically, the tumor showed malignant spindle c...

background : the brain is a rare site of metastases from ovarian cancer. limited data are available on prognostic factors, standard treatment, and survival. knowledge of clinical prognostic factors would help the management of patients with brain metastases. the aim of this study is to evaluate the impact of clinical factors and treatment modalities on survival in patients with brain metastases...

background: very few studies have utilized specific criteria to assess mental disorders in brain tumor patients. this study aimed to diagnose mental disorders in this population using dsm-iv (depression, sleep, and mood) criteria. methods: from march 2007 to july 2009, the surgically treated patients with intracranial neoplasm were included in the study. these patients were examined in an ambul...

background : central nervous system tumors account for 2%-5% of all malignancies in humans. these tumors account for 2% of all pediatric cancers. the worldwide incidence of primary central nervous system tumors is estimated at 3.9 (males) and 3.2 (females) per 100000 person-years. the incidence of brain tumor cases has been reported as 3.67% of all malignancies and 4% of all cancer mortalities ...

introduction: 99mtc-mibi has been proposed for use as an imaging agent for various tumors, including breast cancer, lung cancer, lymphomas, melanomas and brain neoplastic lesions. brain tumors are very common and radiotherapy being major part of treatment following surgery. after radiotherapy, deteriorating clinical status can be due to either radiation necrosis or recurrent tumor. computed tom...

Background: About half of all brain tumors are primary, and the remainder are metastatic. Tumors of the nervous system have unique characteristics that set them apart from neoplastic processes elsewhere in the body. The World Health Organization (WHO) has classified central nervous system (CNS) tumors as grades I to IV in increasing order of malignancy. The goal of this study was to follow the...

background: rahbdoid tumor of kidney (rtk) is a childhood rare neoplasm, previously thought as a sarcoma variant of wilms’ tumor, but now is recognized as a distinct pathologic entity. method : we report a pathologically proved case of rtk, associated with brain mass in a 4.5-month-old girl that has referred for gross hematuria. shortly after initiating chemotherapy, because of retractile vomit...

Introduction: 99mTc-MIBI has been proposed for use as an imaging agent for various tumors, including breast cancer, lung cancer, lymphomas, melanomas and brain neoplastic lesions. Brain tumors are very common and radiotherapy being major part of treatment following surgery. After radiotherapy, deteriorating clinical status can be due to either radiation necrosis or recurrent tumor. Comput...

background:: hypercoagulability has been reported in primary brain tumors which can lead to thrombotic complications.hydroxyethyl starch (hetastarch) is a synthetic colloid solution with adverse effects on blood coagulation. the aim of this study was to evaluate the protective effect of hetastarch in reducing thromboembolic events in these patients. materials and methods: in a double-blinded cl...