Utility and performance of cell blocks in cerebrospinal fluid cytology: Experience at two teaching hospitals.

Background: Cytology cell blocks (CBs) are not routinely made for cerebrospinal fluid (CSF) specimens. The goal of this study was to identify when CSF CB preparation improves diagnostic performance.

Materials And Methods: Under institutional review board approval, a retrospective review of CSF cytology cases was conducted at a tertiary university-based hospital and an affiliated county hospital.