Rare Subcutaneous Manifestation of Rosai-Dorfman Disease on FDG PET/CT in an Adolescent.
case_report · Level V
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- Record sourced from PubMed, PMID 41364460.
- Also identified by DOI 10.1097/RLU.0000000000006244.
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Abstract
Rosai-Dorfman disease (RDD) most commonly presents as painless, massive cervical lymphadenopathy. In this case, a 17-year-old girl presented with a progressively enlarging, painful mass on her back. Ultrasound revealed subcutaneous soft tissue lesions in the posterior trunk, and FDG PET/CT demonstrated hypermetabolic activity within these lesions as well as in an enlarged left inguinal lymph node. Histopathologic examination confirmed the diagnosis of Rosai-Dorfman disease. This case underscores the importance of including RDD in the differential diagnosis of atypical subcutaneous masses, particularly in light of its potential for uncommon extranodal involvement.
Medical subject headings
- Histiocytosis, Sinus
- Positron Emission Tomography Computed Tomography
- Fluorodeoxyglucose F18
- Subcutaneous Tissue