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Aims: Frozen section diagnosis provides surgeons, physicians and pathologists a provisional diagnosis to plan out their management
plan. By this study, we intended to evaluate the importance of intraoperative consultation-Frozen Section (FS) diagnosis in CNS
tumors. In this study, the diagnostic accuracy and the various limitations of using FS diagnosis of CNS tumors were determined.
Methods & Material: In study, we analyzed retrospectively the results of FS and final diagnoses of all CNS tumors were made at our
institute for duration of one year from July 2014 to June 2015.
Results: We studied 252 cases of age group from 1 to 76 years. Out of which, 155 (61.50%) cases had complete concordance between
FS and final diagnosis, 77 (30.5%) cases had partial concordance and 20 cases (8.0%) were discordant. Considering the concordant
and partially concordant cases, the accuracy rate was 92.0%, sensitivity was 93.42%, specificity was 91.66% and positive and negative
predictive values were 94.66% and 59.45%, respectively.
Conclusions: A Kappa agreement score of 0.75 (substantial agreement score) showed high concordance for FS results with permanent
section. We came to final conclusion that high sensitivity and specificity was seen with FS diagnosis in the cases of CNS tumors.