Urinary Pleural Effusion:Introducing Treatment and Follow-Up Course of Three Cases.

Urinary-derived pleural effusion is a rare thoracic complication of urogenital diseases, most commonly caused by obstructive urinary tract disorders.However, it may also result from therapeutic or traumatic injuries. Due to its rarity and lack of clear diagnostic criteria, such conditions are often underestimated. In the three reported cases, all patients exhibited typical clinical symptoms, including dyspnea and chest pain. After the diagnosis of urinary-derived pleural effusion, different treatment strategies have been successfully employed to manage the condition. During follow-up, all three patients underwent surgery again for urinary calculi, but did not experience similar severe complications. We emphasize that the management of urinary-derived pleural effusion requires multidisciplinary collaboration that focuses on correcting the underlying urological pathologies. Once treated for a patent of the urinary tract, pleural effusion typically resolves rapidly. Based on these cases, we highlight the importance of early diagnosis and appropriate treatment in the management of urinary-derived pleural effusion, and recommend that clinicians maintain a high index of suspicion when encountering related cases to develop individualized treatment plans.