Table 1.

Differences Between CCAM and BPS

	CCAM	BPS
		Intralobar	Extralobar
Incidence	1/11,000–1/35,000	Rare
Vascular supply	Pulmonary	Systemic: lower thoracic or upper abdominal aorta	Systemic: thoracic aorta
Laterality	80%–95% unilateral, either lobe	60% left sided	90% left sided
Sex	Male > Female	Male = Female	Male > Female
Tracheobronchial communication	Present, constricted/anomalous	None	None
Associated anomalies	Rare except for Type 2 (60%)	17%	40%