title: Edematous, scarring vasculitic panniculitis: a new multisystemic disease with malignant potential.
abstract: BACKGROUND
  Hydroa vacciniforme (HV) is a disease of unknown origin characterized by erythema, vesicles, necrosis, and varicelliform scars in light-exposed skin. Systemic involvement is absent. A few patients have been reported with "severe HV" with systemic involvement, development of non-Hodgkin's lymphoma, and a poor prognosis.
  
  
  OBJECTIVE
  Our purpose was to characterize and differentiate our patients' disease from HV.
  
  
  METHODS
  We performed a retrospective clinicopathologic study of 14 children previously diagnosed as having "severe HV."
  
  
  RESULTS
  The extension and severity of the cutaneous lesions, fever, wasting, failure to thrive, hepatosplenomegaly, vasculitis, panniculitis, and potential development of lymphoma are features that clearly differentiate edematous scarring vasculitic panniculitis from HV.
  
  
  CONCLUSIONS
  Edematous scarring vasculitic panniculitis is a novel multisystemic disease with malignant potential that is not related to classic HV.
authors: Department of Pediatric Dermatology, National Institute of Pediatrics, Mexico City, Mexico.
authors: R
authors: R
authors: Ruiz-Maldonado
authors: F M
authors: FM
authors: Parrilla
authors: M L
authors: ML
authors: Orozco-Covarrubias
authors: C
authors: C
authors: Ridaura
authors: L
authors: L
authors: Tamayo Sanchez
authors: C
authors: C
authors: Duran McKinster
mesh_terms: D000293:Adolescent; D001706:Biopsy; D002648:Child; D002921:Cicatrix / Q000209:etiology; D003937:Diagnosis, Differential; D004487:Edema / Q000209:etiology; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D006837:Hydroa Vacciniforme / Q000175:diagnosis*; D008228:Lymphoma, Non-Hodgkin / Q000473:pathology*; D008297:Male; D015434:Panniculitis / Q000150:complications / Q000175:diagnosis*; D011230:Precancerous Conditions / Q000473:pathology*; D011379:Prognosis; D012189:Retrospective Studies; D012720:Severity of Illness Index; D012867:Skin / Q000473:pathology*; D012871:Skin Diseases / Q000209:etiology; D014657:Vasculitis / Q000150:complications / Q000175:diagnosis*