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  • Title: Temporal bone manifestation of primary extranodal Rosai-Dorfman disease: a case report.
    Author: Koonar E, Ramazani F, Hyrcza M, Chau J.
    Journal: J Med Case Rep; 2023 Jun 21; 17(1):280. PubMed ID: 37340304.
    Abstract:
    BACKGROUND: Rosai-Dorfman disease is a rare benign histiocytic disorder characterized in most cases by painless cervical adenopathy. Less than 10% of extranodal cases involve bony lesions. Primary bone Rosai-Dorfman disease in the absence of nodal disease is extremely rare. CASE PRESENTATION: A 48 year-old Caucasian male presented with progressive right-sided otalgia, tinnitus, vertigo, and hearing loss. A right temporal bone lytic lesion was detected on diagnostic imaging. Resection of the lesion and histopathological examination revealed Rosai-Dorfman disease. CONCLUSIONS: Rosai-Dorfman disease primary bone lesions are an atypical presentation of a rare disease. This is the second reported case of Rosai-Dorfman disease arising within the temporal bone. This case study reveals that Rosai-Dorfman disease should be considered for patients presenting with inflammatory/lytic lesions of the temporal bone, in cases where infection and malignancy have been excluded.
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