title: A carcinoma in situ arising in an endocervical polyp--a case report.
abstract: A rare case of a carcinoma in situ arising from an endocervical polyp is described. The covering epithelium of the polyp transformed gradually into a carcinoma in situ via squamous metaplasia and dysplasia, spreading horizontally with glandular involvement, and colliding with the surface columnar cells. The lack of tumor tissue in the pedicle and adjacent cervical region confirms the case was a carcinoma in situ originating from the surface epithelium of the endocervical polyp.
authors.affiliation: Department of Obstetrics and Gynecology, Kurume University School of Medicine, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Nishida
authors.forename: T
authors.initials: T
authors.lastname: Sugiyama
authors.forename: T
authors.initials: T
authors.lastname: Miyoshi
authors.forename: A
authors.initials: A
authors.lastname: Kataoka
authors.forename: S
authors.initials: S
authors.lastname: Kumagai
authors.forename: S
authors.initials: S
authors.lastname: Ota
authors.forename: S
authors.initials: S
authors.lastname: Iwanaga
authors.forename: M
authors.initials: M
authors.lastname: Yakushiji
mesh_terms: D018256:Adenomatous Polyps / Q000473:pathology*; D002278:Carcinoma in Situ / Q000473:pathology*; D005260:Female; D006801:Humans; D008875:Middle Aged; D002583:Uterine Cervical Neoplasms / Q000473:pathology*