Cytology is among one of the most common diagnostics in primary and specialty care veterinary hospitals. The veterinary technician can play a significant and important role in diagnostic microscopy, including sample collection, sample preparation and quality assurance, and sample analysis. This session will focus on techniques to maximize the diagnostic value of a sample and provide instruction on the microscopic interpretation through the use of representative case examples. In addition to cytology, the session will include a review of ancillary tests for lymphoid neoplasms (lymphoma and leukemia), including flow cytometry and PARR (lymphoma PCR) testing. Samples will include cytology preparations and instruction will be provided by two board-certified veterinary clinical pathologists.