Semiology of pathological conditions in patients indicated for stereotactic biopsy

INTRODUCTION: Brain tumors produce symptoms and signs which are often non-specific, and therefore they may occur for more than a few months prior to diagnosis. The aim of this study was to determine the frequency of referent signs and symptoms among patients referred for stereotactic brain biopsy. MATERIAL AND METHODS: In this study, we retrospectively analyzed medical history of 65 patients (67.7% males and 32.3% females) between the ages of 16 and 81 years. The following symptoms and signs were included in the analysis: organic brain syndrome, lateralization of crossed pyramidal tract, cranial nerve dysfunction, speech disorders, cerebellar-vestibular syndrome, nausea, vomiting, headache, the occurrence of at least one epileptic seizure and respondents' physical weakness. RESULTS: Physical weakness was the most frequent symptom to be recogized (76.9%), whereas pyramidal neurological lateralization was the most commonly recognized sign (58.5%). There was a significant correlation between the course of disease and physical weakness (rho = -0.34, p = 0.005), as well as the course of disease and lateralization of the pyramidal tract (rho =0.65, p = 0.00). No significant correlation was found between other clinical signs and symptoms. CONCLUSION: An accurate diagniosis and early recognition of signs and symptoms may be useful in determining indications for stereotactic brain biopsy.