Chest CT Appearances
Pulmonary Arteriovenous Malformation (PAVM) CT Findings
- Feeding artery and draining vein must have an intervening vascular nidus
- Often unilateral
- Usually found in the lower lobes
- Multiple PAVMs more common in HHT disease
Other Information About Pulmonary Arteriovenous Malformation (PAVM)
Etiology:
- Congenital
- Sporadic
- Hereditary Hemorrhagic Telangiectasia (HHT)
Epidemiology:
- Associated with HHT
Presentation:
- Asymptomatic
Prognosis:
- High morbidity and mortality
Related Pearls: Vascular Malformations and AVMs