Digital Examination of LYmph node CYtopathology Using the Sydney system (DELYCYUS). An international, multi-institutional study
Background: After a series of standardized reporting systems in cytopathology, the Sydney system was recently introduced to address the need for reproducibility and standardization in lymph node cytopathology. Since then, the risk of malignancy for the categories of the Sydney system has been explored by several studies, but no studies have yet examined the interobserver reproducibility of the Syd