Multiple Clustered XXXX .

@entity2298 @entity1 @entity5 @entity645 @entity120 @entity3074 @entity2280 @entity21939 @entity792
BACKGROUND: @entity3074 ( @entity3074 ) are common, benign, fibrohistiocytic @entity5 of the skin. Clinically, if they present in a rapid succession, they are termed multiple eruptive @entity3074 . When they arise in a localized distribution, they are termed multiple clustered @entity3074 (MCDFs). These DF variants are rare, and the subtype of multiple eruptive @entity3074 has been associated with @entity792 , @entity2298 , pregnancy, @entity645 , and @entity120 . Conversely, there is a paucity of published clinical associations with MCDF. METHODS: A 23-year-old white @entity1 with @entity120 presented with a 7-year history of multiple, asymptomatic, firm, brown, and violaceous papules clustered on the right hip. RESULTS: Histopathologic examination of the biopsies demonstrated acanthotic epidermis, proliferation of cytologically bland fibrohistiocytic spindle cells in a fascicular pattern in the dermis, and collagen trapping on the periphery. Immunohistochemistry was focally positive for @entity21939 and negative for @entity2280 , thus supporting the clinical diagnosis of MCDF. CONCLUSIONS: A case of MCDF associated with @entity120 is presented. To date, there have been greater than 25 reported cases of MCDF, but only one other publication has described an associated systemic comorbidity.
