title: Lymphomatoid papulosis: a localized form with acral pustular involvement.
abstract: We report a localized form of lymphomatoid papulosis (LyP) presenting as pustular papules of the hands. The histopathology revealed a moderate inflammatory infiltrate composed of atypical pleomorphic large lymphocytes with atypical mitosis and large nuclei. Epidermotropism could be observed. These atypical cells expressed CD4 and CD30. Laboratory examinations and bone marrow explorations remained negative. The clinical presentation of this case of LyP is unusual. Only histopathological features allowed to diagnose LyP. The knowledge that LyP may be associated with neoplasia or lymphoma underlines the need for a long-term follow-up of these patients.
authors.affiliation: Dermatology Unit, Hôtel-Dieu, Lyon, France.
authors.forename: M C
authors.initials: MC
authors.lastname: Deroo-Berger
authors.forename: F
authors.initials: F
authors.lastname: Skowron
authors.forename: S
authors.initials: S
authors.lastname: Ronger
authors.forename: B
authors.initials: B
authors.lastname: Balme
authors.forename: F
authors.initials: F
authors.lastname: Berard
authors.forename: A S
authors.initials: AS
authors.lastname: Causeret
authors.forename: H
authors.initials: H
authors.lastname: Perrot
authors.forename: L
authors.initials: L
authors.lastname: Thomas
mesh_terms: D006229:Hand Dermatoses / Q000473:pathology*; D006801:Humans; D017731:Lymphomatoid Papulosis / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D012867:Skin / Q000473:pathology