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Updated: Apr 3, 2026

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18F-FDG PET/CT of Widespread Rosai-Dorfman Disease
Varun Singh Dhull1, Averlicia Passah, Neelima Rana
1From the *Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi; †Department of Radiodiagnosis, M. S. Ramaiah Medical College, Bengaluru; and ‡Department of Pathology, All India Institute of Medical Sciences, New Delhi, India.
Abstract:
We present a rare case of Rosai-Dorfman disease who was sent for whole-body 18F-FDG PET/CT to know the exact extent of involvement. PET/CT revealed extensive nodal and extranodal involvement from head to toe including osteolytic lesions in metacarpals, metatarsals, and phalanges. It is important to know the exact extent of the disease as this may alter the patient management.
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