title: Endomyometriosis arising in the uterosacral ligament: a case report including a literature review and immunohistochemical analysis.
abstract: We report a case of endomyometriosis arising in the left uterosacral ligament of a 29-year-old woman. The central cavity of the uterine-like mass was lined by pseudo-stratified columnar epithelium and endometrial stroma. The wall of the cyst consisted of bundles of smooth muscle cells. Immunohistochemical analysis demonstrated both alpha-estrogen receptor and progesterone receptor immunoreactivities in the epithelial, stromal and smooth muscle cells. A relatively high proliferating activity was also demonstrated in these cells by Ki-67 immunostaining. These findings suggest that the mass was hormone dependent and had a relatively rapid evolution.
authors.affiliation: Departments of Obstetrics and Gynecology andPathology, Tohoku University School of Medicine, Sendai, Japan. matsuzaki@ob-gy.med.tohoku.ac.jp
authors.forename: S
authors.initials: S
authors.lastname: Matsuzaki
authors.forename: T
authors.initials: T
authors.lastname: Murakami
authors.forename: S
authors.initials: S
authors.lastname: Sato
authors.forename: T
authors.initials: T
authors.lastname: Moriya
authors.forename: H
authors.initials: H
authors.lastname: Sasano
authors.forename: A
authors.initials: A
authors.lastname: Yajima
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D004717:Endometrium / Q000737:chemistry / Q000473:pathology*; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D019394:Ki-67 Antigen / Q000032:analysis; D008022:Ligaments / Q000737:chemistry / Q000473:pathology*; D009215:Myometrium / Q000737:chemistry / Q000473:pathology*; D012445:Sacrococcygeal Region; D014599:Uterus
chemical_list: D019394:Ki-67 Antigen