Intra-Amniotic Band And Similar Linear Echogenities In Obstetric Ultrasonography

Öz

Linear echogenic structures in the gestational sac affect the prognosis of pregnancy, so differential diagnosis is important. Most of the band-like echogenic linear structures are benign uterine synechiaes that are not clinically relevant. Circumvallate plasenta may rarely seen. Circumvallate placenta is associated with hemorrhage and preterm delivery, but if ultrasonography has suspected circumvallate placenta, the prognosis is generally good. Amniotic band syndrome is a very rare condition, but it may be associated with poor outcomes due to the developmental potential of serious anatomical abnormalities.

Anahtar Kelimeler

• Amniotic band,synechiae,circumvallate placenta

Obstetrik Ultrasonografide İntra-Amniyotik Bant ve Benzeri Lineer Ekojeniteler

Öz

Gebelik kesesindeki bant ve benzeri lineer ekojen yapılar gebelik prognozunu etkiler, bu nedenle ayırıcı tanı önemlidir. Bant benzeri ekojen lineer yapıların büyük çoğunluğu, klinik olarak önemi olmayan benign uterin sineşilerdir. Daha seyrek olarak, sirkumvallat plasenta görülür. Sirkumvallat plasentanın kanama ve preterm doğumla ilişkisi klinik önem taşır, ancak ultrasonografide sirkümvallat plasenta şüphesi varsa, prognoz genellikle iyidir. Amniyotik bant sendromu çok nadir görülen bir durumdur, ancak ciddi anatomik anormalliklerin gelişim potansiyeline bağlı olarak kötü sonuçlarla ilişkili olabilir.

Anahtar Kelimeler

• Amniyotik bant,sineşi,sirkümvallat plasenta

Kaynakça

1. Pleş L, Sima RM, Moisei C, Moga MA, Dracea L. Abnormal ultrasound appearance of the amniotic membranes - diagnostic and significance: a pictorial essay. Med Ultrason. 2017 Apr 22;19(2):211-215.
2. Worrall JA, Duobes T. Recognizing Intra-amniotic Band-like Structures on Obstetric Ultrasound Diagnostic Imaging. 2011. www.diagnosticimaging. com/article/recognizing-intra-amniotic-band-structures-obstetric-ultra- sound.
3. Jensen KK, Oh KY, Kennedy AM, Sohaey R. Intrauterine Linear Echogeni- cities in the Gravid Uterus: What Radiologists Should Know. Radiographi- cs. 2018 Mar-Apr;38(2):642-657.
4. Marino T. Ultrasound abnormalities of the amniotic fluid, membranes, umbilical cord, and placenta. Obstet Gynecol Clin North Am. 2004 Mar;31(1):177-200.
5. Altun Ensari T, Uygur D, Erdinç-Özgü AS; Kırbaş A, ErkayaS, Danışman N. Severe Case of Amniotic Band Syndrome Presented by Abruptio Placen- ta. Ortadogu Medical Journal. 2015, 7(4): 210-212.
6. Timur H, Iskender C, Daglar HK, Kaymak O, Kirbas A, Danisman N. Stran- gulation of umbilical cord by an amniotic band: A rare cause of stillbirth in the third Trimester. J Cases Obstet Gynecol, 2015;2(2):37-39.
7. Ozkavukcu E, Haliloglu N. Gray-scale and color Doppler US findings of amniotic sheets. Diagn Interv Radiol. 2012;18(3):298–302.
8. Suzuki S. Clinical significance of pregnancies with circumvallate placenta. J Obstet Gynaecol Res. 2008 Feb;34(1):51-4.

9. Ortiz JU, Eixarch E, Peguero A, Lobmaier SM, Bennasar M, Martinez JM, Gratacós E. Chorioamniotic membrane separation after fetoscopy in mo- nochorionic twin pregnancy: incidence and impact on perinatal outcome. Ultrasound Obstet Gynecol. 2016 Mar;47(3):345-9.
10. Bibbo C, Little SE, Bsat J, Botka KA, Benson CB, Robinson JN. Chorioam- niotic Separation Found on Obstetric Ultrasound and Perinatal Outcome. AJP Rep. 2016 Jul;6(3):e337-43.