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Comparative evaluation of squash smear and frozen section in the intraoperative diagnosis of central nervous system tumours

The squash smear technique was introduced into intra‐operative neurosurgical diagnosis as early as 1930. It is becoming increasingly popular in the diagnosis of central nervous system (CNS) lesions, and is fairly accurate even with a small sample. The current study assesses the accuracy and utility of the squash smear and frozen section (FS) techniques in intraoperative consultations. Correlations with histopathological diagnoses are presented.