I-131 Avid Tumor Thrombus in a Case of Poorly Differentiated Thyroid Cancer
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Interesting Image
P: 178-180
June 2023

I-131 Avid Tumor Thrombus in a Case of Poorly Differentiated Thyroid Cancer

Mol Imaging Radionucl Ther 2023;32(2):178-180
1. Shaukat Khanum Memorial Cancer Hospital and Research Centre, Department of Nuclear Medicine, Lahore, Pakistan
No information available.
No information available
Received Date: 08.11.2022
Accepted Date: 22.01.2023
Publish Date: 20.06.2023
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ABSTRACT

Intravenous tumor extension is a well-recognized phenomenon occurring in various malignancies but is a relatively rare entity in thyroid carcinoma. In patients with poorly differentiated thyroid cancer (pDTC), I-131 avid superior vena cava tumor (SVC) thrombus at initial presentation is infrequent and potential life threatening. Tumor thrombus can form either due to direct vascular extension of the primary mass or by hematogenous spread. Hybrid nuclear imaging can differentiate the two entities, which can impact the treatment plan of the patient. We present images of an interesting case of evolution of SVC thrombus in a 46-year-old woman with diagnosed pDTC over the span of two years.

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