title: A case of lymphadenosis benigna cutis of the earlobe: an immunohistochemical study.
abstract: We report a 38-year-old woman who developed an erythematous nodule on her earlobe after wearing pierced-type 18-carat gold earrings. Biopsy specimens revealed dense cellular infiltration predominantly composed of lymphocytes and plasma cells in the dermis and subcutaneous tissue with formation of lymph follicles. Morphological and immunohistochemical analyses were compatible with lymphadenosis benigna cutis.
authors.affiliation: Department of Dermatology, Tokyo Women's Medical College, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Murata
authors.forename: H
authors.initials: H
authors.lastname: Toyoda
authors.forename: T
authors.initials: T
authors.lastname: Nogita
authors.forename: M
authors.initials: M
authors.lastname: Kawashima
authors.forename: A
authors.initials: A
authors.lastname: Hidano
authors.forename: T
authors.initials: T
authors.lastname: Kasajima
mesh_terms: D000328:Adult; D000944:Antigens, Differentiation, B-Lymphocyte / Q000032:analysis; D004431:Ear, External / Q000473:pathology; D004893:Erythema Nodosum / Q000473:pathology; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D015451:Leukemia, Lymphocytic, Chronic, B-Cell / Q000276:immunology / Q000473:pathology*; D011961:Receptors, Fc / Q000032:analysis; D017455:Receptors, IgE; D012878:Skin Neoplasms / Q000276:immunology / Q000473:pathology*
chemical_list: D000944:Antigens, Differentiation, B-Lymphocyte; D011961:Receptors, Fc; D017455:Receptors, IgE