Tags: Disease.
A pseudoaneurysm also known as a false aneurysm is a hematoma that forms as the result of a leaking hole in an artery. Note that the hematoma forms outside the arterial wall so it is contained by the surrounding tissues. Also it must continue to communicate with the artery to be considered a pseudoaneurysm. This must be distinguished from a true aneurysm which is a localised dilatation of an artery including all the layers of the wall.
