title: Sebaceous lymphadenoma of the lip: report of a case of minor salivary gland origin.
abstract: A case of sebaceous lymphadenoma occurring in the lip of a 73-year-old female is described. The patient had noticed a painless mass in the region of her upper lip for a year. The surgically removed tumor, measuring about 10 mm in diameter, was located just beneath the lip mucosa, expanding into the submucosal and muscle layer. Histologically, the tumor was well encapsulated and consisted of scattered round-shaped islands of small squamous epithelial cells with focal but apparent sebaceous differentiation in a background of lymphoid stroma. This is the first case report of sebaceous lymphadenoma of minor salivary gland origin.
authors.affiliation: Division of Oral Pathology, Department of Tissue Regeneration and Reconstruction, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan.
authors.forename: Satoshi
authors.initials: S
authors.lastname: Maruyama
authors.forename: Jun
authors.initials: J
authors.lastname: Cheng
authors.forename: Tatsuo
authors.initials: T
authors.lastname: Inoue
authors.forename: Ritsuo
authors.initials: R
authors.lastname: Takagi
authors.forename: Takashi
authors.initials: T
authors.lastname: Saku
mesh_terms: D000368:Aged; D015496:CD4-Positive T-Lymphocytes / Q000473:pathology; D004847:Epithelial Cells / Q000473:pathology; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008048:Lip Neoplasms / Q000473:pathology*; D008214:Lymphocytes / Q000473:pathology; D008223:Lymphoma / Q000473:pathology*; D012468:Salivary Gland Neoplasms / Q000473:pathology*; D012470:Salivary Glands, Minor / Q000473:pathology*; D012626:Sebaceous Gland Neoplasms / Q000473:pathology; D013601:T-Lymphocytes / Q000473:pathology