engleski

Epidemiology of brain tumors

The incidence of brain tumors over a five-year period, from 1997 to 2001, was studied. The relation between newly detected brain newly detected brain tumors and other causes of hospitalization was monitored at the Departemnt of Neurology and of Neurossurgery, Split Clinical Hospital. During the five-year period of observation, 15 467 patients were treated, 539 of them for newly deteced tumors. The ratio of newly deteced tumors to brain metastases was 2:1. AMong primary brain tumors, glioma and meningioma prevaled, whereas neurinoma and hypophyseal tumors occurred at a lower rate. Twenty-seven percent of tumor processes were not pathohistologically differented for a numer of reasons. The most common brain metastases originated from the lungs (42.0%), skin melanoma (9.2%), breasts (9.8%), colon with rectum (9.2%), and kidneys (8.1%). There were no statistically significant within-group differences according to age or sex. It appears interesting to note that as many as 5.8% of the newly detected lung tumors and 4.0% of the newly detected kidney tumors had neurologic disturbances as the first symptom. The presented data indicate the importance of the thorough workup of the patient as well as the need of caution during the workup.

primary brain tumor; metastasis; incidence

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