What is an aneurysm in the C5 segment of the left internal carotid artery?
Apr 13, 2023
Source: Cainiu Health
Dr. Zhang Jianbin
Introduction
A left internal carotid artery aneurysm at the C5 segment refers to an aneurysm occurring between the carotid bifurcation and the entrance to the dural ring. An aneurysm is an abnormal dilation of the blood vessel wall, forming a sac-like structure, typically caused by weakness or damage in the vessel wall, leading to its expansion and formation of an aneurysmal sac. Treatment options for C5 segment aneurysms include medical therapy, endovascular intervention, and surgical treatment.
Aneurysm of the left internal carotid artery at the C5 segment refers to an aneurysm occurring between the carotid bifurcation and the entrance of the cavernous sinus. An aneurysm is an abnormal dilation of the blood vessel wall, forming a sac-like structure, typically caused by weakness or damage to the vessel wall, leading to its expansion and formation of an aneurysmal sac.
C5 segment aneurysms may be congenital or acquired, although the exact cause remains unclear. Potential risk factors include hypertension, atherosclerosis, structural abnormalities of the arterial wall, inflammation, trauma, and others. The formation of an aneurysm in the C5 segment can weaken the vessel wall and potentially lead to the development of an aneurysmal sac.
The clinical manifestations and risks associated with C5 segment aneurysms vary depending on their size, location, and morphology, and may include neck pain, neck mass, neurological symptoms (such as headache, dizziness, visual disturbances), and potentially life-threatening complications such as hemorrhage or embolism. Treatment options for C5 segment aneurysms include medical therapy, endovascular intervention, and surgical treatment. The specific treatment plan must be individualized based on the patient's clinical condition, characteristics and size of the aneurysm, and the physician’s professional judgment.
