Pathogenesis of Urothelial Carcinoma -- Adequacy of Urine Specimens (Adequacy) -- Negative for High Grade Urothelial Carcinoma (Negative) -- Atypical Urothelial Cells (AUC) -- Suspicious for High Grade Urothelial Carcinoma (Suspicious) -- High Grade Urothelial Carcinoma (HGUC) -- Low Grade Urothelial Neoplasia (LGUN) -- Other Malignancies Primary and Metastatic and Miscellaneous Lesions -- Ancillary Studies in Urinary Cytology -- Cytopreparatory Techniques -- Clinical Management, Including Microscopic Hematuria.