Cell blocks in veterinary medicine: A comparison of two methods (cell tube and agar) in 52 effusions from dogs and cats

Background Cell blocks are alternative preparations of fluid cytological specimens. They can be used for immunochemical studies as complementary tools or when other techniques (eg, immunocytochemistry, flow cytometry) are not available. Objectives We aimed to provide comparative morphologic, immunohistochemical, and technical features of agar‐based cell blocks (ACBs) and cell tube blocks (CTBs) from cavitary effusions. Methods Agar‐based cell...