A 'shelf' in the amniotic cavity seen during ultrasound examination. Amniotic sheets represent chorion and amnion that has grown around uterine synechiae ( adhesions) . Incomplete amniotic sheets have a free edge. Complete amniotic sheets have no free edge, and have been associated with increased risk for intrauterine death.
Amniotic sheets may be mistaken for amniotic bands. However, amniotic bands more often appear as multiple thin membranes, and are frequently attached to the fetus.
Circumvallate placenta is another cause of uterine band, sheet, or shelf.
Tan KB, Tan TY, Tan JV, Yan YL, Yeo GS. The amniotic sheet: a truly benign condition?Ultrasound Obstet Gynecol. 2005 Nov;26(6):639-43. PMID: 16254890
Other Pregnancy Term
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Pregnancy Abdomen,The Belly,Abdominal circumference (AC),Abortion,Abruptio placenta (Placental abruption),Acceleration,Acromelia,Active Labor,Acute Cervical Insufficiency,Afterbirth,Agenesis of the corpus callosum (ACC),Akinesia,Alloimmunization (Isoimmunization),Alpha-fetoprotein (AFP),Amniocentesis,Amnioinfusion,Amniotic fluid,Amniotic Fluid Index (AFI),Amniotic fluid ‘sludge’,Amniotic sac,Amniotic sheet,Amniotomy (artificial rupture of membranes , AROM),pregnancy terms,elifexpert
,Anemia,Anencephaly,Anesthesia,Angle of insonation,Anomaly,Antenatal,Antenatal corticosteroids , ACS,Antepartum,Anterior,Antibody (Immunoglobulin),Anticardiolipin antibodies (ACA, aCL Antibody) *,Anti-c antibody (little c antibody) *,Anti-D antibody (Rh sensitization, Rh disease)*,Anti-Duffy antibody (anti-Fya antibody),Anti-Kell antibody,Anti-Kidd antibody (anti-Jka or anti-Jkb),Anti-Lewis antibody,Anti-S antibody,Apgar Score,First Trimester,Second Trimester,Third Trimester
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