|
|
Pulmonary arteriovenous fistula is a congenital vascular malformation in lung resulting from abnormal capillary development and thus unoxygenated, desaturated arterial blood enters into the pulmonary venous system and results in various symptoms such as exertional dyspnea, cyanosis, clubbing fingers and secondary polycythemia.
The exact etiology of pulmonary arteriovenous fistula is not well known but it may occur with or without hereditary... |
