title: Microsatellite instability in endometrioid endometrial carcinoma: correlation with clinically relevant pathologic variables.
abstract: This study of 218 patients with endometrioid endometrial carcinoma explores the relationship between microsatellite instability (MSI) as established by the BAT26 method and the common pathologic variables of prognostic and therapeutic significance. MSI was positively correlated with grade, associated endometrial atrophy, squamous metaplasia, isthmic involvement, depth of myoinvasion, vascular invasion-associated changes, extrauterine tumor spread, and extramyometrial angiolymphatic spread. There was no significant correlation with carcinoma developing in adenomyosis, mucinous metaplasia, tumor size, cornual involvement, cervical extension, uterine serosal involvement, and targeted lymphoid response. The positive correlations are discussed in terms of molecular genetics.
authors.affiliation: Department of Laboratory Medicine, Cross Cancer Institute, University of Alberta, 11560 University Avenue, Edmonton, Alberta, Canada. lhonore@shaw.ca
authors.forename: L H
authors.initials: LH
authors.lastname: Honoré
authors.forename: J
authors.initials: J
authors.lastname: Hanson
authors.forename: S E
authors.initials: SE
authors.lastname: Andrew
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D018269:Carcinoma, Endometrioid / Q000235:genetics* / Q000473:pathology; D043171:Chromosomal Instability; D016889:Endometrial Neoplasms / Q000235:genetics* / Q000473:pathology; D005260:Female; D006801:Humans; D018895:Microsatellite Repeats; D008875:Middle Aged; D025202:Molecular Diagnostic Techniques; D009361:Neoplasm Invasiveness; D011379:Prognosis