title: Keratinocyte dysplasia: an usual finding after transplantation or chemotherapy.
abstract: BACKGROUND
  Keratinocyte dysplasia is a histologic abnormality that has rarely been described in the first weeks after chemotherapy or transplantation. The purpose of this study was to determine the prevalence of early keratinocyte dysplasia after chemotherapy or transplant and to analyze the relationship between dysplasia and chemotherapeutic agents, transplantation or development of acute graft vs. host disease (GvHD).
  
  
  METHODS
  A computer search for transplant patients was performed in the Departments of Hematology, Oncology and Surgery. Only patients with a skin biopsy taken within the first days of transplantation or chemotherapeutic treatment were included in the analysis.
  
  
  RESULTS
  Forty-four patients were included, of these 19 were women and 25 were men. Thirty-four (77.3%) of 44 biopsies showed keratinocyte dysplasia. This dysplasia was severe in 18 cases (40.9%). Cyclophosphamide was more likely to be associated with severe keratinocyte maturation disturbances (OR = 5.51) (p < 0.01) whereas cytarabine was associated with a lower risk (OR = 0.19) (p < 0.05).
  
  
  CONCLUSIONS
  Severe keratinocyte dysplasia is a usual histologic finding in patients who have received chemotherapy and/or transplantation (40.9%). Cyclophosphamide is the main chemotherapeutic agent significantly associated with a higher risk of severe dysplasia (OR = 5.51). Causes other than GvHD or preconditioning treatment may be involved in the keratinocyte dysplasia, as it can be also found in transplanted patients who have not received chemotherapy and/or have not developed GvHD.
authors.affiliation: Department of Dermatology, Hospital Universitario 12 de Octubre, and Staticon International España, SA, Madrid, Spain.
authors.forename: Esther
authors.initials: E
authors.lastname: Castaño
authors.forename: Jose Luis
authors.initials: JL
authors.lastname: Rodríguez-Peralto
authors.forename: Fernando
authors.initials: F
authors.lastname: López-Ríos
authors.forename: Carlos
authors.initials: C
authors.lastname: Gómez
authors.forename: Marta
authors.initials: M
authors.lastname: Zimmermann
authors.forename: Luis
authors.initials: L
authors.lastname: Iglesias Díez
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000970:Antineoplastic Agents / Q000009:adverse effects*; D018906:Antineoplastic Agents, Alkylating / Q000009:adverse effects; D016026:Bone Marrow Transplantation / Q000009:adverse effects*; D002648:Child; D003520:Cyclophosphamide / Q000009:adverse effects; D003937:Diagnosis, Differential; D005260:Female; D006086:Graft vs Host Disease / Q000175:diagnosis; D006785:Hospitals, University; D006801:Humans; D015603:Keratinocytes / Q000473:pathology*; D016031:Liver Transplantation / Q000009:adverse effects*; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D012871:Skin Diseases / Q000453:epidemiology / Q000209:etiology*; D013030:Spain / Q000453:epidemiology
chemical_list: D000970:Antineoplastic Agents; D018906:Antineoplastic Agents, Alkylating; D003520:Cyclophosphamide