We report the case of a 41-year-old man with extranodal Rosai-Dorfman disease (RDD), presenting with clinically detectable bone involvement only. The use of FDG-PET/CT in the diagnosis of RDD is discussed.
A 69-year-old man was found to have a right orbital soft-tissue mass on imaging as an incidental finding. Excisional biopsy revealed a well-circumscribed mass encasing the infraorbital nerve, consistent with Castleman's disease (CD) on histopathology. In the orbit, CD is extremely rare with few reported cases. We report this patient with localized intraorbital Castleman's disease.
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