title: Amniotic sheets.
abstract: Seventeen cases of an aberrant sheet of tissue in the amniotic cavity are described to expand and clarify previous observations of this entity. The sheet of tissue demonstrates a thickened base and a free edge that undulates. The fetus moves freely about the sheet of tissue. There are no associated fetal deformities, and infants have no manifestations of the amniotic-band syndrome. Evidence suggests that these sheets may originate from "wrapping" of the amniochorionic membrane over a uterine synechia. These benign sheets of tissue should not be confused with the amniotic-band syndrome.
authors.affiliation: Department of Radiology, University of California School of Medicine, San Francisco 94143.
authors.forename: S B
authors.initials: SB
authors.lastname: Randel
authors.forename: R A
authors.initials: RA
authors.lastname: Filly
authors.forename: P W
authors.initials: PW
authors.lastname: Callen
authors.forename: R L
authors.initials: RL
authors.lastname: Anderson
authors.forename: M S
authors.initials: MS
authors.lastname: Golbus
mesh_terms: D000328:Adult; D000650:Amnion / Q000473:pathology*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011248:Pregnancy Complications / Q000473:pathology*; D014463:Ultrasonography