Lymphomatoid Papulosis

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Abstract
• Lymphomatoid papulosis is usually considered to have a benign course, but many reports of subsequent evolution into systemic lymphoma have been reported. By measuring single-cell DNA content by flow cytometry, it may be possible to predict those cases that have the potential for the development of a malignant neoplasm. Two cases that differ from classic benign lymphomatoid papulosis had a more "malignant" clinical picture, with nodules and tumors, and the finding of aneuploidy (abnormal DNA content) from several skin lesion specimens and also from a lymph node specimen in one of the cases. Clinically evident malignant neoplasms have not yet developed in the two patients, but we suggest that the finding of aneuploidy predicts those cases that later could become malignant. (Arch Dermatol 1985;121:792-794)