Which one of the following statements best describe pseudoaneurysm

A. Focal dilation of vessel in which intimal and medial layers are disrupted and the dilated segment is lined by adventitia

B. Focal dilation of a vessel only involving one poion of the circumference

C. Apparent dilation of a vessel due to intrinsic narrowing proximal and distal to the point of apparent narrowing

D. Dilation of a vessel, though not to the size necessary to be diagnosed as a true aneurysm

Correct Answer: Focal dilation of vessel in which intimal and medial layers are disrupted and the dilated segment is lined by adventitia

Description: Pseudoaneurysm Wall is not formed by all the three layers Pseudoaneurysms can arise from Primary defects in the aoic wall (e.g -After trauma or contained aneurysm rupture) Anastomotic or cannulation site leaks that occur after cardiovascular surgery. Anastomotic pseudoaneurysms can be caused by Technical problems Deterioration of the native aoic tissue, graft material, or suture. Associated with Marfan syndrome, Loeys-Dietz syndrome Progressive degenerative disease Infection. Saccular aneurysm: affect only one pa of aerial circumference

Category: Surgery

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