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CHAOS - Congenital High Airway Obstructive Syndrome:

 

Dr Sampurna Roy MD                        

 

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Congenital high airway obstructive syndrome (CHAOS) is a rare but fatal disease.

 

 

    

Laryngeal cyst

It is characterized by complete or near-complete developmental obstruction of the fetal airway. 

Causes of CHAOS include laryngeal atresia, laryngeal or subglottic stenosis, webs, laryngeal cysts and tracheal atresia or stenosis.

Laryngomucocoele is a rare cause of airways obstruction in the neonatal period.

Many fetuses with CHAOS have other associated congenital abnormalities.

Pleural and pericardial effusions and subcutaneous oedema, are seen in CHAOS antenatally.

It is difficult to distinguish pathological features of hydrops from normal postmortem MRI findings.

 

Further reading:

More or less CHAOS: case report and literature review suggesting the existence of a distinct subtype of congenital high airway obstruction syndrome.

Congenital laryngomucocoele: a rare cause for CHAOS.

Postmortem magnetic resonance appearances of congenital high airway obstruction syndrome.

Evidence for autosomal dominant inheritance in prenatally diagnosed CHAOS.

Fetal laryngeal stenosis/atresia and congenital high airway obstructive syndrome (CHAOS): a case report.

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Dr  Sampurna Roy  MD

Consultant  Histopathologist (Kolkata - India)

 

 


 

 

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