What is the difference between a neck aneurysm and a carotid body tumor?

What is the difference between a carotid artery aneurysm and a neck aneurysm?

Identification of carotid artery aneurysm and carotid artery aneurysm: Carotid artery aneurysm occurs at the bifurcation of the common carotid artery. Carotid artery aneurysm is caused by arteriosclerosis, trauma, and bacterial infection. Both manifest as a raised mass in the neck. Clinically, carotid artery aneurysm manifests as a pulsating mass. When a thrombus forms, the blood flow is less and the pulsation is not obvious. Carotid artery aneurysm has no pulsation. In fact, the two tumors are mainly diagnosed based on whether there is pulsation during physical examination and imaging examination.

Most patients only discover a pulsatile abdominal mass during a physical examination or on their own.

The main clinical manifestations are as follows:

1. Pulsating abdominal mass: Most of them are located in the left abdomen beside the umbilicus. When there is an iliac artery aneurysm, it extends to the iliac fossa on the same side. The pulsation is characterized by a multi-directional expansion feeling, which may be accompanied by tremor and vascular murmur.

2. Pain: Most patients only have mild abdominal discomfort or swelling pain. When the tumor erodes the vertebral body or compresses the spinal nerve roots, back pain occurs. Sudden severe abdominal pain or back pain is a sign of aneurysm rupture into the abdominal cavity or retroperitoneum.

3. Compression of adjacent organs: Compression of the duodenum and proximal duct can cause digestive tract symptoms. After the ureter is compressed, clinical manifestations of urinary tract obstruction occur. In a few cases, obstructive jaundice is caused by compression of the bile duct.

4. Acute arterial embolism: The thrombus in the tumor cavity breaks off, causing acute embolism of the abdominal aorta branches such as the mesenteric artery, renal artery or lower limb artery embolism, causing the corresponding clinical manifestations of acute arterial ischemia.

5. Aneurysm rupture: Aneurysm rupture can cause massive bleeding, with serious consequences. Depending on the way the aneurysm ruptures, it can manifest as rapid and massive bleeding in the abdominal cavity, and the patient often dies of hemorrhagic shock in a short period of time; huge retroperitoneal hematoma, sudden severe pain in the abdomen or back, and symptoms of hemorrhagic shock; aortoenteric fistula causes repeated bleeding in the digestive tract, leading to hemorrhagic anemia and shock; aorta-inferior vena cava fistula causes severe congestive heart failure.