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[Personal experience with ex tempore diagnosis of neurosurgical biopsies using the smear method]
S Ilić1, R Bokun, I Milosavljević
1Vojnomedicinska akademija, Institut za patologiju i sudsku medicinu, Beograd.
Abstract:
The results obtained by the use of the smear method were analyzed in ex tempore diagnostics of 240 neurosurgical biopsies, done in the period from 1991 to 1993. Thirty three different pathologic lesions were found that had their special morphology on smears, indicating the high specificity of this method. In 226 cases (94.17%) the diagnosis was established correctly, but in 14 cases (5.83%) it was not: in three cases the diagnosis was falsely negative and in 11 falsely positive. The main causes of the diagnostic errors were analysed and they included the subjective factors and uncommonness of the analyzed tissue samples. The accuracy of 94.17% enabled sufficiently reliable use of this method in ex tempore diagnostics of neurosurgical biopsies.