Objective: The development of the Paris System (TPS) has provided a standard and reproducible system for reporting urine cytopathology. Our goal was to study the impact of TPS on the diagnostic accuracy of urine cytology since we began using it in 2016.
Methods: We performed a retrospective study of all urine cytology specimens received at our institution from January 2015 through July 2017.
Papillary thyroid carcinoma (PTC) is typically an indolent disease characterized by slow growth and a favorable prognosis. In rare instances, this disease may metastasize to the pleura and manifest as a malignant pleural effusion. We report 3 female patients of Japanese/Okinawan ancestry with a history of PTC who presented with hydrothorax.
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