Persistent Agmination Of Lymphomatoid Papulosis

A 12-year-old boy had lesions clinically and histopathologically consistent with lymphomatoid papulosis (LP) which were persistent and appeared grouped in a circumscribed area of normal looking background skin on the right abdomen. Staging workup did not disclose systemic disease. Persistent agmination of lymphomatoid papulosis (PALP) is somewhat different from classical LP because it involves a circumscribed, patch-sized area of the skin and the papules within never resolve completely despite some waxing and waning. PALP might be considered a localized or regional form of LP or a distinct lymphoproliferative disorder; in any case, at least a cautious long-term follow up is recommended, with attention to the possible development of true lymphoma.