An Isolated Osseous Rosai-Dorfman Disease Shown on FDG PET/CT

Rosai-Dorfman disease is typically presented as lymphadenopathy, especially in the neck. Extranodal diseases also frequently occur but are generally concurrent with nodal disease. We report FDG PET/CT findings of solitary femoral Rosai-Dorfman disease without any lymphadenopathy in a pediatric patient. Received for publication January 3, 2019; revision accepted January 7, 2019. Conflicts of interest and sources of funding: none declared. Correspondence to: Hongming Zhuang, MD, PhD, FACNM, Department of Radiology, Children's Hospital of Philadelphia, 34th & Civic Ctr Blvd, Philadelphia, PA 19104. E-mail: zhuang@email.chop.edu. Copyright © 2019 Wolters Kluwer Health, Inc. All rights reserved.

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