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Updated: Mar 13, 2026

Computer-Aided Three-Dimensional Visualization in the Treatment of Locally Advanced Thyroid Cancer
Published on: June 9, 2023
Follicular thyroid carcinoma with tumour thrombus extending into superior vena cava and right atrium - A case report
Geetesh Manik1, John Jose2, B Hygriv Rao3
1Krishna Institute of Medical Sciences, Hyderabad, India.
Abstract:
Intra-cardiac extension of tumour thrombus of follicular carcinoma of thyroid is uncommon. We report a case of advanced thyroid carcinoma where tumour thrombus was well profiled with CT scan and transesophageal echo images and extension was noted from SVC into right atrium, with clinical features of superior vena cava syndrome. The clinical significance of the "ring sign" is discussed.
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