what does dilated coronary sinus mean
The coronary sinus is a collection of veins joined together to form a large vessel that collects blood from the heart muscle (myocardium).It delivers deoxygenated blood to the right atrium, as do the superior and inferior vena cavae.It is present in all mammals, including humans.he valve of the coronary sinus is on the posterior, inferior surface of the heart, medial to the inferior vena cava opening, just superior to the septal leaflet of the tricuspid valve.