Two Cases Of Acrania Diagnosed in the First Trimester

Year 2013, Volume: 4 Issue: 13, 35 - 38, 03.03.2015

Nesrin Atcı , Ayşe Güler Hakan Yeral Atilla Karateke Hanifi Bayaroğlu

Abstract

Fetal acrania that is characterized with the absence of calvarium (acalvaria) is a rarely seen lethal anomaly . Compared with heavy neural tube defects, anencefaly and exencefaly, cerebral paranchyme is protected in acrania. Failure in the migration of ectodermal mesenchymal cells was responsible for etiology. Diagnosis is possible with ultrasonography (US) in early gestational weeks. In this report, 2 cases of acrania that was detected with sonographic examination in the 1st trimester were presented with the discussion of the literature

Keywords

Acrani, neural tube defect, ultrasonography

BİRİNCİ TRİMESTERDE SAPTANAN İKİ AKRANİ OLGUSU

Abstract

Fetal akrani, kalvaryumun (akalvaria) yokluğu ile karakterize, daima ölümcül seyreden ve nadir görülen bir anomalidir. Daha ağır nöral tüp defektleri olan anensefali ve exensefali ile karşılaştırıldığında akranide beyin parankim organizasyonunun korunduğu görülür. Etyolojisinde ektodermal mezenkimal hücrelerin göçünde yetersizlik sorumlu tutulmaktadır. Erken
gebelik haftasında yapılacak bir ultrason (US) ile akrani tanısını koymak mümkündür. Bu yazıda 1. trimesterde sonografik incelemeyle tespit edilen 2 akrani olgusu literatür eşliğinde sunulmuştur.

Keywords

Akrani, nöral tüp defekti, ultrason

References

• Weissman A, Diukman R, Auslender R; Fetal Acrania: Five new cases and review of
• literature; J Clin Ultrasound; 1997; 25: 9: 511
• Cheng CC, Lee FK, Lin HW, Shih JC, Tsai MS.Diagnosisof fetal acraniaduring the
• first trimeser nuchal translucency screening for Down syndrome. İnt J Gynaecol
• Obstet 2003; 80:139-44.
• Cincore V, Ninios AP, Pavlik J, Hsu CD. Prenatal diagnosis of acrania associated
• withamniotic band syndrome. Obstet Gynecol 2003; 102:1176-8.
• Bianca S, İngegnosi C, Auditore S.et al. Prenatal diagnosis and postnatal finding
• ofacrania. Arch Gynecol Obstet 2005; 271: 257– 259.
• Machado R. A, Brizot M. L, Carvalho M. H. B, Waissman A, Bunduki V, Zugaib
• M.Sonographic markers of exencephaly below 10 weeks' gestation. Prenat Diag
• ;25:31-33.
• Dahnert W. Radiology review manuel. 4th ed. Baltimore: Williams&Wilkins, 1999;
• -