Rosai-Dorfman disease - Utility of (18)F-FDG PET/CT for initial evaluation and follow-up Journal Article

Authors: Mahajan, S.; Nakajima, R.; Yabe, M.; Dogan, A.; Ulaner, G. A.; Yahalom, J.; Noy, A.; Diamond, E. L.; Schòˆder, H.
Article Title: Rosai-Dorfman disease - Utility of (18)F-FDG PET/CT for initial evaluation and follow-up
Abstract: BACKGROUND: The role of imaging in the management of Rosai-Dorfman disease (RDD), a rare non-Langerhans cell histiocytosis, is not clearly defined. We present an analysis of FDG PET/CT findings obtained for initial disease characterization, follow-up evaluation, and treatment planning for this disease. METHODS: From an institutional pathology database (2001-2018), we identified RDD patients who underwent FDG PET/CT scans either as part of clinical care or when done as part of clinical trials. For all scans, sites of abnormal FDG uptake were assessed, and SUVmax was measured. Comparison of PET/CT findings was made with anatomic (CT/MRI-based) imaging, where available. Instances of changing treatment based on PET/CT were recorded. RESULTS: We reviewed 109 FDG PET/CT scans in 27 patients with RDD. Five of 27 patients had only nodal/cutaneous disease, whereas 22 patients had extranodal disease, most commonly in bone (n = 9) and central nervous system (n = 7). PET/CT identified sites of active disease in 24 of 27 patients. All identified bone and extraskeletal lesions, except for a brain lesion in 1 patient, were FDG-avid. In 6 of 20 patients (30%) with available prior CT or MRI, PET/CT demonstrated additional RDD lesions (bones: n = 5, pleura: n = 1) that were not apparent on anatomic imaging; 3 of these lesions were outside the CT field of view, and 3 were not recognized on CT. Overall, 13 of 109 PET/CT scans led to a change in management, affecting 41% (11/27) of patients. CONCLUSION: FDG PET/CT was valuable in defining disease extent and optimizing treatment strategy in patients with RDD.
Journal Title: Clinical Nuclear Medicine
Volume: 45
Issue: 6
ISSN: 0363-9762
Publisher: Lippincott Williams & Wilkins  
Date Published: 2020-06-01
Start Page: e260
End Page: e266
Language: English
DOI: 10.1097/rlu.0000000000003014
PUBMED: 32349088
PROVIDER: scopus
PMCID: PMC8177955
Notes: Article -- Source: Scopus
Citation Impact
MSK Authors
  1. Gary Ulaner
    144 Ulaner
  2. Joachim Yahalom
    569 Yahalom
  3. Ariela Noy
    326 Noy
  4. Heiko Schoder
    480 Schoder
  5. Eli Louis Diamond
    166 Diamond
  6. Ahmet Dogan
    386 Dogan
  7. Mariko   Yabe
    38 Yabe