title: Chemotherapy-induced acral erythema: report of a case and immunohistochemical findings.
abstract: Chemotherapy-induced acral erythema (CAE) is an uncommon and distinct reaction seen in patients receiving high-dose chemotherapy. The exact pathogenic mechanisms of this disorder are still unknown. We report a 27-year-old woman who presented with red, swollen and painful macules on both palms, clinically consistent with this disease. Histological examination demonstrated vacuolar degeneration of the basal cell layer and spongiotic blisters in the epidermis, especially in the atrophied eccrine ducts and papillary oedema with mild perivascular infiltration of mononuclear and hypersegmented neutrophils. Immunohistochemistry showed that the infiltrating mononuclear cells were CD3-CD16+CD56+ leucocyte function antigen-1+, possibly natural killer cells. The eccrine ducts expressed HLA-DR and intracellular adhesion molecule-1 (ICAM-1). Our findings suggest that cell-to-cell interaction between NK cells and keratinocytes in the eccrine apparatus may induce CAE and may be involved in the pathogenesis of the skin reaction in our patient and possibly in this disease.
authors.affiliation: Departments of Dermatology and Haematology, Osaka City University Medical School, Japan. d-tsuruta@northwestern.edu
authors.forename: D
authors.initials: D
authors.lastname: Tsuruta
authors.forename: K
authors.initials: K
authors.lastname: Mochida
authors.forename: T
authors.initials: T
authors.lastname: Hamada
authors.forename: M
authors.initials: M
authors.lastname: Ishii
authors.forename: K
authors.initials: K
authors.lastname: Wakasa
authors.forename: S
authors.initials: S
authors.lastname: Hashimoto
authors.forename: K E
authors.initials: KE
authors.lastname: Takekawa
mesh_terms: D000305:Adrenal Cortex Hormones / Q000627:therapeutic use; D000328:Adult; D015703:Antigens, CD / Q000276:immunology; D002450:Cell Communication; D004439:Eccrine Glands / Q000276:immunology; D004890:Erythema / Q000139:chemically induced* / Q000276:immunology / Q000473:pathology; D005260:Female; D006229:Hand Dermatoses / Q000139:chemically induced* / Q000276:immunology / Q000473:pathology; D006801:Humans; D015603:Keratinocytes / Q000276:immunology; D007694:Killer Cells, Natural / Q000276:immunology
chemical_list: D000305:Adrenal Cortex Hormones; D015703:Antigens, CD