Higher positive identification of malignant CSF cells using the cytocentrifuge than the Suta chamber.

Objective: To define how to best handle cerebrospinal fluid (CSF) specimens to obtain the highest positivity rate for the diagnosis of malignancy, comparing two different methods of cell concentration, sedimentation and cytocentrifugation.

Methods: A retrospective analysis of 411 CSF reports.

Results: This is a descriptive comparative study.