title: Cutaneous lymphoepithelial neoplasms.
abstract: Lymphoepithelial neoplasms are a heterogeneous group of biphasic tumors that contain both epithelial and lymphoid components. Most of these tumors are primarily epithelial with a secondary lymphoid infiltrate and illustrate the basic cell trafficking that occurs in the skin. Included are benign cutaneous lymphadenoma, malignant lymphoepithelioma-like carcinoma, heterotopic dermal thymus, and several miscellaneous lesions that may have a prominent lymphoid infiltrate. Familiarization with their characteristic features will aid in the recognition of these relatively uncommon but often distinct entities.
authors.affiliation: Department of Dermatology, University of California, Irvine, USA.
authors.forename: J M
authors.initials: JM
authors.lastname: Okamura
authors.forename: R J
authors.initials: RJ
authors.lastname: Barr
mesh_terms: D000235:Adenolymphoma / Q000473:pathology; D002294:Carcinoma, Squamous Cell / Q000473:pathology; D002828:Choristoma / Q000473:pathology; D004848:Epithelium / Q000473:pathology; D006801:Humans; D008221:Lymphoid Tissue / Q000473:pathology; D008223:Lymphoma / Q000473:pathology; D008232:Lymphoproliferative Disorders / Q000473:pathology; D012871:Skin Diseases / Q000473:pathology; D012878:Skin Neoplasms / Q000473:pathology*; D013950:Thymus Gland / Q000473:pathology