title: Persistent agmination of lymphomatoid papulosis.
abstract: 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 work-up 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.
authors.affiliation: Department of Dermatology, Hospital del Niño Jesús, 28009 Madrid, Spain. atorrelo@aedv.es
authors.forename: Antonio
authors.initials: A
authors.lastname: Torrelo
authors.forename: Isabel
authors.initials: I
authors.lastname: Colmenero
authors.forename: Angela
authors.initials: A
authors.lastname: Hernández
authors.forename: Rebeca
authors.initials: R
authors.lastname: Goiriz
mesh_terms: D001706:Biopsy; D002648:Child; D006801:Humans; D017730:Ki-1 Antigen / Q000378:metabolism; D017731:Lymphomatoid Papulosis / Q000378:metabolism / Q000473:pathology*; D008297:Male; D012867:Skin / Q000378:metabolism / Q000473:pathology*; D012878:Skin Neoplasms / Q000378:metabolism / Q000473:pathology*
chemical_list: D017730:Ki-1 Antigen