_Cystic adenomatoid malformations
§Maturation arrest in lung
segments
_
_Azyous lobe
§Superior
apical bronchus grows medially instead of laterally; vein is at
bottom of superior lobe fissure
_Sequestration –
§Accessory
piece of lung that becomes disconnected from tracheobronchial tree
and parasitizes systemic circulation from diaphragm.