title: Collision tumour of trichofolliculoma and basal cell carcinoma.
abstract: A 52-year-old woman presented with a 2-year history of a reddish nodule on the right nasolabial sulcus. Histopathological examination revealed that the nodule was composed of trichofolliculoma and basal cell carcinoma. There was no transitional zone between the two neoplasms. The diagnosis was made as a collision tumour of trichofolliculoma and basal cell carcinoma.
authors.affiliation: Department of Pathology, Izzet Baysal Medical Faculty, Abant Izzet Baysal University, Bolu, Turkey. cetinboran@yahoo.com
authors.forename: Cetin
authors.initials: C
authors.lastname: Boran
authors.forename: Ali Haydar
authors.initials: AH
authors.lastname: Parlak
authors.forename: Hayri
authors.initials: H
authors.lastname: Erkol
mesh_terms: D002280:Basal Cell Carcinoma / Q000473:pathology* / Q000601:surgery; D005153:Facial Neoplasms / Q000473:pathology* / Q000601:surgery; D005260:Female; D018859:Hair Follicle / Q000473:pathology* / Q000601:surgery; D006801:Humans; D008875:Middle Aged; D012878:Skin Neoplasms / Q000473:pathology* / Q000601:surgery; D016896:Treatment Outcome