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Updated: Mar 14, 2026

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18F-NaF and 18F-FDG PET/CT in Gorham-Stout Disease
Georgios Z Papadakis1, Corina Millo, Ulas Bagci
1From the *Radiology and Imaging Sciences, Warren Grant Magnuson Clinical Center, National Institutes of Health, Bethesda; †Division of Nuclear Medicine, RAD&IS, Clinical Center, National Institutes of Health, Bethesda, MD; ‡Center for Research in Computer Vision, Electrical and Computer Science Department, University of Central Florida, Orlando, FL; §National Institute of Child Health and Human Development, National Institutes of Health, Bethesda; and ∥Craniofacial and Skeletal Diseases Branch, National Institutes of Dental and Craniofacial Research, Bethesda, MD.
Abstract:
Gorham-Stout disease (GSD) is an extremely rare skeletal disorder of unknown etiology characterized by benign proliferation of vascular or lymphatic channels, leading to progressive bone resorption. We report on a patient diagnosed with GSD affecting the right scapula and the right ribs, who underwent PET/CT scans using F-FDG and F-NaF. The remnant upper portion of the affected scapula did not show F-FDG uptake but demonstrated markedly increased F-NaF activity. Furthermore, intense F-NaF activity was seen on the right posterior ribs, which were actively being resorbed, suggesting the potential application of F-NaF-PET/CT imaging in GSD diagnosis and follow-up.
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