ABSTRACT
Background: the annual incidence of tumors of CNS range from 10- 17 per 100000 persons for intracranial tumors and 1-2 per 100000 persons for intaspinal tumors. About half are primary tumors and the rest are the metastatic. Pervious studies showed some of risk factors related to CNS tumors. We studie some risk factors [sex, age, cigarette, head radiation, family history] related to problems
Materials and methods: this was a case-series study performed on patients who had the CNS tumors in be'saat Medical Center during 1999-2003 years. The diagnosis of patients is confirmed by the pathology report. The data collections have been full filled using a check list containing seven variables [type and location of tumor, sex and age, cigarette, head radiation, family history] during a survey of patient's files. The obtained results were analyzed with SPSS-11.5
Results: twenty five cases of all 40 patients were male [62.5%] and 15 cases were female [37.5%]. The high frequency of tumors had been observed among adults particularly in the four and five decades of life. GIioma with 45% and meningioma with 22.5% had highest frequencies among tumors. All tumors except meningioma had high frequency in the male patients. Ten percent of all the patients were smokers
Conclusion: sex and age have important role in the incidence of tumors which the frequency of primary intracranial neoplasm increases with age. The high frequency iS in males but some of tumors, for example meningioma has high frequency in females. Some of the environmental risk factors explained in incidence of CNS tumors and we can decrease risk of tumor with diagnosis and dilation of them