false aneurysm
Last reviewed 01/2018
Unlike a true aneurysm, this type of aneurysm does not involve the vessel wall. It merely represents a collection of blood, which has been held around the vessel by connective tissue.
Such false aneurysms may arise following traumatic damage or there may be a slow anastomotic leak which is confined by surrounding tissues.
False aneurysm result in a slowly expanding blood-filled cavity. The cavity will eventually rupture or undergo thrombosis.
This condition generally presents as a pulsatile mass.