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CC BY 4.0 · World J Nucl Med 2023; 22(01): 063-066
DOI: 10.1055/s-0042-1758804
Case Report

Tenosynovial Giant Cell Tumor of Foot in a Patient with Radioiodine-Refractory Thyroid Cancer: Imaging Findings on FDG-PET/CT, MRI, and Radioiodine Scan

Sarvesh Loharkar
1   Radiation Medicine Centre, Bhabha Atomic Research Centre, Tata Memorial Hospital Annexe, Parel, Mumbai, Maharashtra, India
2   Homi Bhabha National Institute, Mumbai, Maharashtra, India
,
Sandip Basu
1   Radiation Medicine Centre, Bhabha Atomic Research Centre, Tata Memorial Hospital Annexe, Parel, Mumbai, Maharashtra, India
2   Homi Bhabha National Institute, Mumbai, Maharashtra, India
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Abstract

We herein illustrate a case of benign tenosynovial giant cell tumor, which was incidentally detected as FDG-avid lesion on PET/CT in a patient with radioiodine refractory thyroid cancer, with predominantly non-iodine concentrating disease. The lesion was followed up clinically and with local MRI annually for subsequent 3 years. The utility of hybrid PET-CT imaging, the non-iodine concentration of the tumor along with clinical knowledge, and findings on other imaging and pathological modalities in answering and diagnosing incidental benign musculoskeletal tumors in a patient with known thyroid malignancy are presented here.

Keywords

benign tenosynovial giant cell tumor - 18F-FDG-PET/CT - benign bone tumor - radioiodine refractory thyroid cancer - thyroglobulin elevated negative iodine scintigraphy - differentiated thyroid carcinoma


Publication History

Article published online:
20 December 2022

© 2022. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. (https://creativecommons.org/licenses/by/4.0/)

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