A case of lymphadenosis benigna cutis of the earlobe: an immunohistochemical study.
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.
Murata
Y
Y
Department of Dermatology, Tokyo Women's Medical College, Japan.
Toyoda
H
H
Nogita
T
T
Kawashima
M
M
Hidano
A
A
Kasajima
T
T
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*
D000944:Antigens, Differentiation, B-Lymphocyte; D011961:Receptors, Fc; D017455:Receptors, IgE