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Coexistence of localized Langerhans cell histiocytosis and cutaneous Rosai–Dorfman disease
Author(s) -
Wang KH.,
Cheng CJ.,
Hu CH.,
Lee WR.
Publication year - 2002
Publication title -
british journal of dermatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.304
H-Index - 179
eISSN - 1365-2133
pISSN - 0007-0963
DOI - 10.1046/j.1365-2133.2002.04879.x
Subject(s) - langerhans cell histiocytosis , histiocyte , rosai–dorfman disease , histiocytosis , pathology , sinus histiocytosis with massive lymphadenopathy , context (archaeology) , medicine , disease , dermatology , biology , paleontology
Summary Rosai–Dorfman disease (RDD; sinus histiocytosis with massive lymphadenopathy) and Langerhans cell histiocytosis (LCH) are two different yet pathogenetically related histiocytic disorders. While systemic and localized forms have been identified in both diseases, each has its own characteristic histological, immunohistochemical and ultrastructural profile. Rarely, either RDD or LCH can also occur in the context of certain malignant neoplasms. However, the coexistence of RDD and LCH has never been described. We report a case of cutaneous RDD in which a focus of LCH was found. Clinical and laboratory examinations revealed no evidence of extracutaneous involvement of RDD or LCH. We believe that this is the first report of such a coexistence, and the possible pathogenesis is discussed.