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CC BY 4.0 · World J Nucl Med 2024; 23(01): 054-056
DOI: 10.1055/s-0044-1779284
Case Report

18F-Fluorodeoxyglucose Uptake in Bilateral Diaphragmatic Crura: A Relatively Uncommon Benign Variant Noted in a Treated Case of Extraosseous Paraspinal Ewing's Sarcoma

Parth Baberwal
1   Radiation Medicine Centre, Bhabha Atomic Research Centre, Tata Memorial Hospital Annexe, Parel, Mumbai, Maharashtra, India
2   Homi Bhabha National Institute, Mumbai, Maharashtra, India
,
Sunita N. Sonavane 
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
› Author Affiliations Funding None.
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Abstract

A toddler was diagnosed with extraosseous Ewing's sarcoma, primary large epidural paraspinal soft tissue in the lumbar region encasing the cord and neural foramen from D12–L1 to L4–L5. After eight cycles of induction chemotherapy with vincristine, doxorubicin, and cyclophosphamide alternating with etoposide and ifosfamide, 18F-FDG positron emission tomography/computed tomography (18F-FDG-PET/CT) scan confirmed no active disease. Later external beam radiotherapy (EBRT) at D10–L5 was completed. At 3 months follow-up, 18F-FDG-PET/CT reconfirmed no residual/active disease; however, a new incidental finding of diffuse benign bilateral diaphragmatic 18F-FDG uptake was noted in the clinically asymptomatic patient, which remained unexplained.

Keywords

extraosseous paraspinal Ewing's sarcoma - bilateral diaphragmatic crura - FDG-PET/CT - benign variant - nonspecific FDG uptake


Publication History

Article published online:
06 February 2024

© 2024. 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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