1. Pulmonary Arterial Tumor Embolism From Recurrent Metastatic Renal Cell Carcinoma on FDG PET/CT.
- Author
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Szabari MV, Ni C, Davila D, and Viragh K
- Subjects
- Male, Humans, Middle Aged, Positron Emission Tomography Computed Tomography, Fluorodeoxyglucose F18, Retrospective Studies, Neoplasm Recurrence, Local, Anticoagulants, Carcinoma, Renal Cell diagnostic imaging, Carcinoma, Renal Cell secondary, Kidney Neoplasms complications, Kidney Neoplasms diagnostic imaging, Kidney Neoplasms pathology, Neoplastic Cells, Circulating, Hypertension, Pulmonary, Pulmonary Embolism complications, Pulmonary Embolism diagnostic imaging
- Abstract
Abstract: A 55-year-old man with renal cell carcinoma extending into the renal vein/inferior vena cava (status post nephrectomy and inferior vena cava thrombectomy, pT3bN0M0), and perioperative pulmonary bland thromboembolism (resolved with 3-month of anticoagulation), followed by 3.5 years of complete remission, developed new incidental pulmonary arterial filling defects on a surveillance CT examination (asymptomatic, normal d -dimer, no deep vein thrombosis). Despite anticoagulation, the filling defects not only persisted but also demonstrated intense FDG activity on a restaging PET/CT performed 4 months later for new pulmonary oligometastasis. The FDG activity resolved after systemic immunotherapy, which suggested the retrospective diagnosis of pulmonary arterial tumor emboli, a rare finding., Competing Interests: Conflicts of interest and sources of funding: none declared., (Copyright © 2023 Wolters Kluwer Health, Inc. All rights reserved.)
- Published
- 2024
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