Pseudomesotheliomatous Carcinoma due to Pleural Metastasis from Renal Pelvic Cancer

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A 78-year-old man was referred to our department with a one-week history of dyspnea and coughing. A chest X-ray showed massive left pleural effusion. Computed tomography revealed diffuse irregular thickening of the left pleura similar to malignant mesothelioma and multiple nodules in both lungs. The patient died of respiratory failure nine days after hospitalization. An autopsy revealed metastasis to the pleura and lungs from urothelial carcinoma of the left kidney.