... ARTIC LE Open AccessDoes pleural fluid appearance really matter? The relationship between fluid appearance and cytology, cell counts, and chemical laboratory measurements in pleural effusions of ... Ozcakar et al.: Does pleural fluid appearance really matter? The relationship between fluid appearance and cytology, cell counts, and chemical laboratory measurements in pleural effusions ofpatients ... Gender, type of primary malig-nancy, fluid appearance, and cytology results are pre-sented as frequencies and proportions. Differences in pleural fluid cell counts, chemical laboratory parameters,survival...