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  • Title: Giant congenital nevus with progressive sclerodermoid reaction in a newborn.
    Author: Pattee SF, Hansen RC, Bangert JL, Joganic EF.
    Journal: Pediatr Dermatol; 2001; 18(4):320-4. PubMed ID: 11576407.
    Abstract:
    Giant congenital melanocytic nevi are a rare occurrence in the pediatric population. The risk of malignant transformation associated with these lesions has been well established; however, the management strategies for giant congenital nevi remain controversial. We report an unusual sclerodermoid reaction in a giant congenital nevus in a 6-week-old Caucasian girl. Given its abnormal clinical appearance, the entire lesion was excised. The histology was consistent with an atypical compound/sclerosing spindle and epithelioid cell congenital nevus. No evidence of malignant change was seen histologically. The incidence of malignant transformation in giant congenital nevi has been difficult to calculate. Review of the literature yields an incidence of between 4 and 9%, favoring surgical excision of these lesions where possible. Atypical presentations of giant congenital nevi are rare, and we have found no other reported cases with a stromal change similar to that seen in our patient. We hypothesize that this change may represent an atypical host reaction to the nevus cells.
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