In the literature. multiple radiological signs of clinically important congenital cardiovascular abnormalities have been described which are named as per the object they resemble. These signs are very useful in learning. The Gooseneck sign is a sign seen in left ventricle catheter angiography in case of an atrioventricular septal defect. https://www.cuttingedgecutleryco.shop/product-category/fire-starter/