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Melanoma mimicking Rosai‐Dorfman disease
Author(s) -
Xie Daniel Y.,
Costello Collin M.,
Liang Helen J.,
Thomas Brett G.,
DiCaudo David J.,
Mangold Aaron R.
Publication year - 2018
Publication title -
journal of cutaneous pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.597
H-Index - 75
eISSN - 1600-0560
pISSN - 0303-6987
DOI - 10.1111/cup.13121
Subject(s) - medicine , cryotherapy , rosai–dorfman disease , melanoma , histiocyte , pathology , dermatology , disease , pagetoid , dermatopathology , radiology , cancer research
Despite well‐defined clinical and histopathological features of melanoma, atypical presentations mimicking other skin disorders can result in a delayed diagnosis or misdiagnosis and subsequent inappropriate treatment. Rosai‐Dorfman disease (RDD) is a rare histiocytic disorder with unique clinical and histopathological features. We report a case of melanoma treated with cryotherapy that mimicked RDD both clinically and histopathologically. We compare this RDD‐like melanoma to classic RDD, outlining the importance of clinicopathological correlation prior to treatment, as well as the potential pitfalls in diagnosis after cryotherapy of pigmented lesions.