Multiple High Grade Rhabdoid Papillary Meningiomas Mimicking Choroid Plexus Carcinoma: A Case Report.

Rhabdoid papillary meningioma is an uncommon aggressive variant of meningioma which has the potential to metastasize and spread throughout the brain and even out of the cranium. Herein, we present recurrence of the brain tumor in a 26-year-old woman. The patient had history of the surgery for two lesions in the right temporal lobe and the left cerebellopontine angle. Imaging showed three lesions in the right temporal lobe, the right occipital horn wall, and the left cerebellopontine angle. These radiologic findings were mostly suggestive of atypical meningioma. In the surgical view, the mass was solid-cystic reddish Cauliflower-shaped in the right temporal lobe attaching to the temporal horn. The microscopic examination showed a cellular neoplasm with the sheet-like and papillary growth pattern. Individual cells had vesicular nuclei some with prominent nucleoli and eosinophilic cytoplasm. The areas of the tumor cells showed round eccentric nuclei and prominent nucleoli with eosinophilic cytoplasm. Immunohistochemistry studies showed diffuse positivity of tumor cells with Vimentin, EMA, and S100. The overall clinical, radiological and histopathological examinations were compatible with high grade rhabdoid-papillary meningiomas. In the present case study, we discuss imaging and histomorphological features of this rare entity of meningiomas.

Primary intraventricular osteosarcoma in a 3-year-old boy: report of a case and review of literature.

INTRODUCTION: Extraskeletal osteosarcoma (ExOS) is a rare and well-known entity. Three to 4% of ExOSs occur in the head and neck region but anecdotally in the central nervous system (CNS). Primary intracranial osteosarcoma (PIOS) can originate from the skull, brain parenchyma, or meninges. CASE PRESENTATION: A 3-year-old boy with history of head trauma 2 weeks before admission is presented harboring an ExOS in the left temporoparietal region. He was operated with the impression of intraventricular meningioma but turned to be a PIOS without any sources in his skeleton. Tumor recurred after 5 months and patient died in 2 weeks with tumor seeding to the brain stem. CONCLUSION: This case is reported to show failure of surgery as the only treatment for these tumors, highlighting the need for more aggressive treatment.

Painful sporadic osteolysis of the parietal bone 'Gorham's disease'.

We report a 62-year old man, with painful osteolysis 'Gorham disease' of skull. To ameliorate pain, large craniotomy and cranioplasty was performed. There was no sign of recurrence after one year. A brief review of the literature is presented.

Familial characteristics of street children in tehran, iran.

OBJECTIVE: The phenomenon of street children is one of the most important concerns facing global community. Identifying risk factors in such children could lead to crucial investigations to find their essential needs by intervention programs. The present study examined the family profile of street children in Tehran, Iran. METHODS: The sample consisted of 576 street children who were evaluated by 15 examiners. Using multi-stage sampling, twenty-seven different areas of Tehran were divided into 5 clusters and the children were selected randomly from each cluster. The two questionnaires applied included a demographic questionnaire and a questionnaire about high-risk behaviors such as substance use, alcohol consumption, cigarette smoking, etc. RESULTS: There was a statistical significant association between the length of work time and two variables: sex and economic status of family (p < 0.05). Incarceration history of street children who had lost both their parents and their parents had been divorced was significantly higher than others (p < 0.05). CONCLUSION: The street children's lifestyle is a risk factor for affecting them to variety types of socio-mental problems. Statistical significant association between parental divorces or the loss of both parents with a history of conviction mentions the important role of parents in transmitting moral and social values to children.

The prevalence of internet addiction among students of Rafsanjan University of Medical Sciences

Internet addiction is defined as mismanagement of internet use that causes mental, social and occupational problems. Thus, the assessment of prevalence of this disorder can lead to preventive measures and appropriate treatment to prevent its spread. Methods: In this cross-sectional study, prevalence of internet addiction disorder was assessed in Rafsanjan University of Medical Sciences, Rafsanjan, Iran in 2012. Stratified random sample was used to select 224 students. Demographic data were recorded and Internet Addiction test Test (IAT) questionnaire was administrated. Results: Out off 224 students participating in the study, 86 (38.4%) were males and 138 (61.6%) were female with a mean age of 21.05± 0.1 years. Most of the students (42.4%) were using the internet "under one hour" and the lowest (4%) "More than six hours". Mean test score of IAT was 24.81 ± 1.08 (mild addiction). In terms of internet addiction, 95 (42.4%) cases were normal users, 115 (51.3%) had mild addiction, 12 (5.4%) showed moderate addiction and 2 (0.9%) were cases of severe addiction which are lower compared to previous studies. Conclusion: The rate of internet addiction among students of Rafsanjan University of Medical Sciences in Iran is lower than the previous reports. It is still necessary to curb the spread of this problem due to its complications.