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Thomas, Brett G.

A5071773768 | I159344633

Mayo Clinic

Kansas City University

Citations 1

Melanoma mimicking Rosai‐Dorfman disease

Journal of Cutaneous Pathology | February 5, 2018 | Volume: 45 | Issue: 5 | Pages: 355-359

10.1111/cup.13121 | PMID 29405342

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.