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Case Studies | Radiological Sciences | India | Volume 4 Issue 10, October 2015
Congenital High Airway Obstruction Syndrome (CHAOS)?A Rare Fetal Malformation- Diagnosis on Antenatal Ultrasonography
Dr. Sandeep J  | Dr. Divyashree | Dr. Rajesh Kumar Saket
Abstract: Congenital high airway obstruction syndrome (CHAOS) is the obstruction of the fetal upper airways, which may be partial or complete. It is important to diagnose it antenatally as it is uniformly lethal and leads to stillbirth or death shortly after delivery. Antenatal diagnosis is made by identifying echogenic and enlarged lungs, dilated bronchi, inverted /flattened diaphragm and ascites on ultrasound. We present a rare case of congenital high airway obstruction, diagnosed on antenatal ultrasonography at 18 weeks of gestation.
Keywords: Congenital high airway obstruction syndrome, Laryngeal atresia, Antenatal ultrasound
Edition: Volume 4 Issue 10, October 2015,
Pages: 2176 - 2178
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