AAAs can impinge adjacent structures such as vertebrae and ureter. True or False?

AAAs can impinge adjacent structures such as vertebrae and ureter. True or False?

• A. False
• B. Rarely
• C. Not true
• D. True

Answer: (D)

An enlarging abdominal aortic aneurysm can create mass effect in the retroperitoneum, pressing on nearby structures. The aorta runs close to the vertebral bodies behind it, and the ureters descend in the retroperitoneum near the aorta and iliac vessels. As the aneurysm grows, this pulsatile mass can push against the vertebrae, potentially causing back pain or even erosion of adjacent bone, and can compress the ureter, risking partial obstruction and hydronephrosis. Imaging may show dilation of the renal pelvis and calyces or other signs of ureteral compression. Therefore, AAAs can impinge adjacent structures such as vertebrae and ureter.

An enlarging abdominal aortic aneurysm can create mass effect in the retroperitoneum, pressing on nearby structures. The aorta runs close to the vertebral bodies behind it, and the ureters descend in the retroperitoneum near the aorta and iliac vessels. As the aneurysm grows, this pulsatile mass can push against the vertebrae, potentially causing back pain or even erosion of adjacent bone, and can compress the ureter, risking partial obstruction and hydronephrosis. Imaging may show dilation of the renal pelvis and calyces or other signs of ureteral compression. Therefore, AAAs can impinge adjacent structures such as vertebrae and ureter.