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Volume 1, Issue 6, Pages 408-411 (November 2015)
A case of cutaneous Rosai-Dorfman disease (CRDD) with underlying calvarial involvement and absence of BRAFV600E mutation Nadine M. Kaskas, MD, Malan Kern, BA, Andrew Johnson, MD, Matthew P. Hughes, MD, Matthew Hardee, MD, PhD, John Day, MD, Murat Gokden, MD, Sara C. Shalin, MD, PhD, Ling Gao, MD, PhD JAAD Case Reports Volume 1, Issue 6, Pages (November 2015) DOI: /j.jdcr Copyright © 2015 American Academy of Dermatology, Inc. Terms and Conditions
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Fig 1 Cutaneous Rosai-Dorfman disease. A, The clinical manifestation on presentation included erythematous pustular nodules on the midline vertex of the scalp. B, Histologic examination revealed a histiocytic and lymphocytic infiltrate. C, High magnification reveals histiocytes with abundant eosinophilic to foamy cytoplasm engulfing other inflammatory cells (emperipolesis). Plasma cells are also part of the infiltrate. (B and C, Hematoxylin-eosin stain; original magnifications: B, ×20; C, ×400.) D, Numerous histiocytes demonstrating emperipolesis. (S100 stain; original magnification: ×40.) JAAD Case Reports 2015 1, DOI: ( /j.jdcr ) Copyright © 2015 American Academy of Dermatology, Inc. Terms and Conditions
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Fig 2 BRAF V600E (c T>A) sequencing. Chromatogram represents the relevant Rosai-Dorfman sample nucleotide sequence; reference sequence represents the wild type BRAF gene (Homo sapiens BRAF proto-oncogene, National Center for Biotechnology Information, National Institutes of Health). Highlighted nucleotide in yellow denotes the position of interest (c. 1799) with lack of T>A nucleotide transversion. JAAD Case Reports 2015 1, DOI: ( /j.jdcr ) Copyright © 2015 American Academy of Dermatology, Inc. Terms and Conditions
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