Congenital pulmonary malformations (also called congenital pulmonary airway malformations or congenital lung malformations) are different types of rare birth defects. In most cases, only one lung will be affected. Most malformations are not dangerous.
The most common congenital pulmonary malformation is a bronchogenic cyst (fluid-filled sac or bubble) on the lung. Other common types include:
Doctors are not sure what causes congenital pulmonary malformations. Most cases happen at random. They are not anyone’s fault.
Most symptoms of congenital pulmonary malformations appear after birth. Common symptoms include:
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