Unilateral absence of pulmonary artery (UAPA) is a rare type of congenital abnormality that may coexist with other congenital abnormalities or present as an isolated lesion. the latter form can be asymptomatic. Surgical procedure is usually carried out when UAPA was diagnosed with significant symptoms. and the aim of surgery is to restore the pulmonary flow distribution. https://www.cuttingedgecutleryco.shop/product-category/sai/