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  • Title: Connective tissue nevi: an entity revisited.
    Author: Saussine A, Marrou K, Delanoé P, Bodak N, Hamel D, Picard A, Sassolas B, de Prost Y, Lemerrer M, Fraitag S, Bodemer C.
    Journal: J Am Acad Dermatol; 2012 Aug; 67(2):233-9. PubMed ID: 22014540.
    Abstract:
    BACKGROUND: Connective tissue nevi (CTN) may be isolated, either sporadic or hereditary, or syndromic as in the Buschke-Ollendorff syndrome. Few publications have addressed the variable clinical and histopathologic expression of these benign hamartomas. OBJECTIVE: We sought to characterize the clinical and histopathologic features of CTN and to highlight a spectrum of clinical disease. METHODS: We carried out a retrospective study of cases selected after strict clinical and histopathologic confirmation of the diagnosis. RESULTS: A total of 33 patients with CTN were included. The average age of onset was 2 years. Three clinical forms were distinguished: type A with lesions at a single site, with one case presenting as an ulcerated infiltrated plaque; type B with two or more sites of involvement; and type C with unusually severe infiltration with functional impairment of a limb. Histopathologic examination of lesional biopsy specimens showed 10 collagenomas, one elastoma, 18 mixed CTN, and an increased number of fibroblasts in 4 cases. No correlation between clinical type and histopathologic findings was observed. LIMITATION: This was a descriptive case series. CONCLUSIONS: CTN comprise a clinical spectrum ranging from isolated papules to unusually severe aggressive plaques with monomelic involvement. The histopathologic features are heterogeneous and include a newly described variant, which we name "cellular CTN" because of the increased number of fibroblasts.
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