Diagnosis of Pleural Fluid Effusions by Cell Block and Pleural Biopsy - A Comparative Study.

Background: Cytological smear and cell block are commonly used to diagnose pleural fluid effusion. However, there is a paucity of information in the literature where a comparison between a cytological smear and a cell block with corresponding pleural biopsy has been done. This study aimed to evaluate the accuracy of cytological smears, cell blocks, and pleural biopsy for the diagnosis of malignant tumors.