Intravenous Tumor Thrombus From Papillary Carcinoma of Thyroid Demonstrated by 18F-FDG PET/CT. (12th January 2022)

• Record Type: Journal Article
• Authors: Wang, Yu; Jiang, Lisha; Zhang, Xinyue; Xu, Yangmengyuan; Liu, Bin
• Is Part Of: Clinical nuclear medicine. Volume 47:Number 6(2022)
• Page Start: 541
• Page End: 542
• Publication Date: 2022-01-12
• Subjects: papillary thyroid carcinoma -- tumor thrombus -- 18F-FDG PET/CT; Nuclear medicine -- Periodicals; Radioisotope scanning -- Periodicals; Nuclear Medicine -- Periodicals; 616.07575
• DOI: 10.1097/RLU.0000000000004001
• Languages: English
• ISSNs: 0363-9762

Abstract

Abstract: A 24-year-old man with papillary thyroid carcinoma underwent 131 I ablation after thyroidectomy. On posttherapy whole-body scintigraphy, only the remnant thyroid was visualized. In view of elevated unstimulated thyroglobulin level 7 months after 131 I ablation, 18 F-FDG PET/CT scan was ordered for further evaluation. On PET/CT images, a large filling defect from the dilated left brachiocephalic vein to superior vena cava was noted corresponding with high FDG uptake. It was considered as a malignant thrombus.