title: The chorionic bump in an ectopic pregnancy.
abstract: The chorionic bump, an irregular, convex bulge of the choriodecidual surface into the gestational sac (GS), is a recently described, uncommon abnormality of the 1st-trimester GS and is associated with a guarded prognosis for early pregnancy. The case of this 42-year-old female demonstrates a previously unreported relationship: a transvaginal sonographic finding of a chorionic bump associated with a spontaneous tubal ectopic pregnancy. This might support the hypothesis that the chorionic bump represents a small hematoma that bulges into the GS.
authors.affiliation: Dartmouth Medical School, Hanover, NH 03755, USA.
authors.forename: Benjamin E
authors.initials: BE
authors.lastname: Northrup
authors.forename: Robert D
authors.initials: RD
authors.lastname: Harris
mesh_terms: D000328:Adult; D002823:Chorion / Q000000981:diagnostic imaging*; D005187:Fallopian Tubes / Q000000981:diagnostic imaging / Q000601:surgery; D005260:Female; D006801:Humans; D010052:Ovariectomy; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D011271:Pregnancy, Ectopic / Q000000981:diagnostic imaging* / Q000601:surgery; D016216:Ultrasonography, Prenatal / Q000379:methods