title: Trichofolliculoma of the upper lip: report of a case.
abstract: A trichofolliculoma occurring in the mid-philtrum of the upper lip of a 17-year-old boy is reported. It presented as an asymptomatic, 10 mm deep sinus and histology showed keratin-filled cysts or sinuses lined by stratified squamous epithelium.
authors: Department of Oral Surgery, Nagoya University School of Medicine, Japan. mizuth@tsuru.med.nagoya-u.ac.jp
authors: H
authors: H
authors: Mizutani
authors: K
authors: K
authors: Senga
authors: M
authors: M
authors: Ueda
mesh_terms: D000293:Adolescent; D003937:Diagnosis, Differential; D006201:Hair Diseases / Q000175:diagnosis / Q000473:pathology / Q000601:surgery; D018859:Hair Follicle / Q000473:pathology / Q000601:surgery; D006801:Humans; D008048:Lip Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D008297:Male; D018295:Neoplasms, Basal Cell / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery