Fig. 2
From: Rosai-Dorfman-Destombes (RDD) disease presenting as palindromic rheumatism
Whole-body 18F-FDG PET co-registered with contrast-enhanced maxillofacial MRI demonstrates sinus lesions. a Whole-body FDG PET maximum intensity projection image demonstrates intense uptake in the nasal cavity, paranasal sinuses, left pelvis, left knee and left ankle (black arrows). Nonspecific mild uptake in the right ankle, and left side of the neck are also seen. b Mildly enhancing infiltrative lesion in the left anterior ethmoidal sinus in the Gadolinium-enhanced maxillofacial MRI, demonstrates intense FDG uptake in the fused PET/MRI axial image (SUVmax 10.6, white arrow). c Enhancing infiltrative mass in the left middle nasal turbinate, in the Gadolinium-enhanced maxillofacial MRI, demonstrates intense FDG uptake in the fused PET/MRI axial image (SUVmax 7.7, white arrow)