Recipient artery dissection during extracranial-intracranial bypass surgery: Two case reports

Figure 4 Schema of the causes of dissecting aneurysm. A: After bypass, dissection occurred due to blood flow between the intima and adventitia, which had become fragile due to the atheroma; B: Due to intimal atherosclerotic change, the entire wall of the recipient artery is not dissected; C: Excluding the sacrificed portion, the distal area can achieve an improved perfusion effect as it receives additional blood flow from the donor artery. STA: Superficial temporal artery.