In the abdominal aorta, the ectatic dilatation does not exceed how many centimeters?

In the abdominal aorta, the ectatic dilatation does not exceed how many centimeters?

• A. 2.5 cm
• B. 3.0 cm
• C. 4.0 cm
• D. 5.0 cm

Answer: (B)

Ectatic dilation means mild, diffuse enlargement of the artery that hasn’t become an aneurysm. The abdominal aorta normally measures about 2 cm in diameter. When it enlarges but stays at or below about 3 cm, it’s considered ectatic. Once the diameter exceeds 3 cm, it’s defined as an abdominal aortic aneurysm, with a higher risk of complications as it grows. So the maximal size for an ectactic abdominal aorta is 3.0 cm; anything larger crosses into aneurysm territory. For context, a 2.8 cm aorta is still ectatic, whereas 3.2 cm would be aneurysmal by standard definitions.

Ectatic dilation means mild, diffuse enlargement of the artery that hasn’t become an aneurysm. The abdominal aorta normally measures about 2 cm in diameter. When it enlarges but stays at or below about 3 cm, it’s considered ectatic. Once the diameter exceeds 3 cm, it’s defined as an abdominal aortic aneurysm, with a higher risk of complications as it grows. So the maximal size for an ectactic abdominal aorta is 3.0 cm; anything larger crosses into aneurysm territory. For context, a 2.8 cm aorta is still ectatic, whereas 3.2 cm would be aneurysmal by standard definitions.