A case of renal cell carcinoma with microscopic pulmonary tumor embolism proven by surgical lung biopsy. (2022)

• Record Type: Journal Article
• Authors: Katano, Takuma; Tsuzuki, Toyonori; Numanami, Hiroki; Sassa, Naoto; Kato, Toshio; Kubo, Akihito; Ito, Satoru
• Is Part Of: Respiratory medicine case reports. Volume 39(2022)
• Publication Date: 2022
• Subjects: Pulmonary tumor embolism -- Renal cell carcinoma -- Respiratory failure -- Surgical lung biopsy -- Micronodules; GGO ground glass opacities -- mMRC modified Medical Research Council dyspnea scale -- PTE pulmonary tumor embolism -- SpO2 peripheral oxygen saturation; Respiratory organs -- Diseases -- Periodicals; Chest -- Diseases -- Periodicals; Respiratory Tract Diseases -- Periodicals; Respiratory System -- Periodicals; Chest -- Diseases; Respiratory organs -- Diseases; Electronic journals; Periodicals; 616.2
• DOI: 10.1016/j.rmcr.2022.101716
• Languages: English
• ISSNs: 2213-0071

Abstract

Abstract: Pulmonary tumor embolism (PTE) is difficult to diagnose before death. We report the case of a 75-year-old man with microscopic PTE of renal cell carcinoma who was diagnosed by surgical lung biopsy. He visited our hospital because of dyspnea on exertion. Chest computed tomography (CT) showed multiple micronodules and ground glass opacities. Steroid therapy was started as therapeutic diagnosis for IgG4-related pulmonary disease. However, he was admitted our hospital due to progressive respiratory failure. Pathological findings of a lung biopsy obtained by video-assisted thoracic surgery showed PTE of renal cell carcinoma without embolization of large pulmonary arteries. He received palliative medicine and died four months after the surgical lung biopsy. In cases of multiple micronodules in chest CT findings and worsened respiratory symptoms, PTE should be considered in the differential diagnosis.