Radiology Case Reports (Mar 2021)

A case of pulmonary tumor embolism diagnosed with respiratory distress immediately after FDG-PET/CT scan

  • Yuko Ogawa, MD,
  • Koichiro Abe, MD, PhD,
  • Keisuke Hata, MD,
  • Tomoko Yamamoto, MD, PhD,
  • Shuji Sakai, MD, PhD

Journal volume & issue
Vol. 16, no. 3
pp. 718 – 722

Abstract

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Acute distress immediately following an 18F-fluorodeoxyglucose positron emission tomography/computed tomography (FDG-PET/CT) scan is an exceedingly rare event. We report a case whose condition was suddenly deteriorated in the nuclear medicine laboratory, and whose diagnosis was confirmed by FDG-PET/CT. A 67-year-old woman with left renal cell carcinoma (RCC) suddenly complained of dyspnea and tachycardia just after undergoing FDG-PET/CT. PET/CT images showed increased FDG uptakes in the left renal vein, inferior vena cava, right atrium, and bilateral hila. She was diagnosed with a massive tumor embolism from the inferior vena cava to both pulmonary arteries, and urgently underwent tumor embolectomy. FDG-PET/CT was helpful for diagnosing the tumor embolism and differentiating it from bland thromboembolism in this patient with RCC.

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