title: A child with mastocytosis and lymphomatoid papulosis.
abstract: A change in clinical behavior of a disease should prompt search for differential diagnoses. Here, the appearance of ulcerated skin nodules in a preexisting cutaneous mastocytosis revealed a concurrent lymphomatoid papulosis - a CD30+ lymphoproliferative skin disease with histological features of a malignant lymphoma, but with a benign self-healing course.
authors.affiliation: Department of Dermatology and Allergy Centre Odense University Hospital Sdr. Boulevard 29, 5000 Odense C Denmark.
authors.forename: Henriette Juel
authors.initials: HJ
authors.lastname: Lange
authors.affiliation: Hans Christian Andersen Children's Hospital Odense University Hospital Sdr. Boulevard 29, 5000 Odense C Denmark.
authors.forename: Lone
authors.initials: L
authors.lastname: Agertoft
authors.affiliation: Department of Pathology Odense University Hospital Sdr. Boulevard 29, 5000 Odense C Denmark.
authors.forename: Michael Boe
authors.initials: MB
authors.lastname: Møller
authors.affiliation: Department of Pathology Odense University Hospital Sdr. Boulevard 29, 5000 Odense C Denmark.
authors.forename: Ole
authors.initials: O
authors.lastname: Clemmensen
authors.affiliation: Department of Pathology Odense University Hospital Sdr. Boulevard 29, 5000 Odense C Denmark.
authors.forename: Thomas
authors.initials: T
authors.lastname: Kristensen
authors.affiliation: Department of Haematology Odense University Hospital Sdr. Boulevard 29, 5000 Odense C Denmark.
authors.forename: Hanne
authors.initials: H
authors.lastname: Vestergaard
authors.affiliation: Department of Dermatology and Allergy Centre Odense University Hospital Sdr. Boulevard 29, 5000 Odense C Denmark.
authors.forename: Charlotte G
authors.initials: CG
authors.lastname: Mørtz
authors.affiliation: Department of Dermatology and Allergy Centre Odense University Hospital Sdr. Boulevard 29, 5000 Odense C Denmark.
authors.forename: Carsten
authors.initials: C
authors.lastname: Bindslev-Jensen
authors.affiliation: Department of Dermatology and Allergy Centre Odense University Hospital Sdr. Boulevard 29, 5000 Odense C Denmark.
authors.forename: Sigurd
authors.initials: S
authors.lastname: Broesby-Olsen
keywords: Lymphomatoid papulosis; mastocytosis; urticaria pigmentosa