Atypically pulmonary arteriovenous malformations

Pulmonary arteriovenous malformations (PAVM) are abnormal connections between the pulmonary arterial system and the pulmonary veins. PAVMs, which are twice as common in women, are generally seen in 4-6 decades. It is thought that congenital origin, previous thoracic traumas and thoracic surgery, liver cirrhosis, mitral stenosis and infections are among the etiological reasons in PAVM.