1. CONGENITAL LUNG MALFORMATIONS
Sequestration

2. Sequestration Congenital mass of aberrant pulmonary tissue that has no
Normal connection with the bronchial tree OR the pulmonary
Arterial system.
Lung parenchyma can be normal or dysplasic
Two types: intra and extralobar, differentiated according the
venous drainage: “intralobar” drenate to left atrium and
“extralobar” throug systemic venous plexus.

3. INTRALOBAR (75%)
Visceral pleura
Adults (recurrent neumonías)
Acquired (Chronic inflamation?¿)
15% congenital anomalies
associated.
EXTRALOBAR (25%)
Own pleural covering
First six months
Developmental
50% congenital anomalies associated (diaphragmatic hernia, cardiac, hybrid forms CCAM/sequestration)
Do not contain air,unless infection or gastrointestinal communication¡¡¡

4. Pulmonary sequestration: left lower lobe consolidation that persists
more than 4 weeks despite correct treatment.

5. Pulmonary sequestration: CT showing a mass in the posterior segment
of the left lower lobe

6. Pulmonary sequestration: CT sagital view showing
a feeding artery arising
from the aorta and
irrigating the pulmonary
mass

7. Pulmonary sequestration: bilateral and communication with esophagus.
Do not contain air, unless infection or gastrointestinal communication¡¡¡
Pulmonary sequestration: bilateral and communication with esophagus.