Background: Glioma is the most common primary brain tumor, and early detection of tumors is important in the treatment planning for the patient. The precise segmentation of the tumor and intratumoral areas on the MRI by a radiologist is the first step in the diagnosis, which, in addition to the consuming time, can also receive different diagnoses from different physicians. The aim of this study...

Intracranial tumors are a type of cancer that grows spontaneously inside the skull. Brain tumor is cause for one in four deaths. Hence early detection important. For this aim, variety segmentation techniques available. The fundamental disadvantage present approaches their low accuracy. With help magnetic resonance imaging (MRI), preventive medical step and evaluation brain done. Magnetic (MRI) ...

how to cite this article: tabatabaei sm, seddighi a, seddighi as. posterior fossa tumor in children. iran. j. child. neurol 2012;6(2): 19-24.   objective primary brain tumors are the most common solid neoplasms of childhood, representing 20% of all pediatric tumors. the best current estimates place the incidence between 2.76 and 4.28/100,000 children per year. compared with brain tumors in adul...

A brain tumor is a problem that threatens life and impedes the normal working of human body. The needs to be identified early for proper diagnosis effective treatment planning. Tumor segmentation from an MRI image one most focused areas medical community, provided non-invasive imaging. Brain involves distinguishing abnormal tissue tissue. This paper presents systematic literature review strateg...

Background: Choriocarcinoma is a rare highly malignant trophoblastic neoplasm. It can be preceded by any form of gestation including a complete or a partial mole, miscarriage and normal pregnancy. Simultaneous intraplacental choriocarcinoma involving both mother and infant is extremely rare. Hepatomegaly, anemia, elevated ßHCG is the diagnostic triad. Here we report a 6 weeks old Afghan girl in...

wilms’ tumor is the most common abdominal tumor of childhood, and its cerebral metastasis is apparently very rare. the authors report an 18-month-old girl with wilms’ tumor and brain metastasis.

background: radiotherapy plays an important role in the management of most malignant and many benign primary central nervous system (cns) tumors. radiotherapy affects both tumor cells and uninvolved normal cells; so, it is important to estimate absorbed dose to organs at risk in this kind of treatment. the aim of this study was to determine the absorbed dose to chiasma, lens, optic nerve, retin...

background: in this study, we examined the epidemiologic characteristics of childhood brain tumors in patients referred to mahak pediatric cancer treatment and research center (one of the main national referral centers for childhood malignancies in iran) for treatment. materials and methods: this cohort (simple sampling) study consisted of 198 children less than 15 year old with cns tumor refer...

radiation induced sarcoma is a rare but recognized complication of radiotherapy and is associated with poor prognosis, frequently occurs 5 years after completion of treatment. we report radiation-induced sarcoma in a 42 years old male, involving the left parietooccipital scalp region following treatment of brain tumor with craniotomy and post-operative radiation with 60co machine. diagnosis of ...