Final answer:
A positive bruit or wide, diffuse pulsation in the epigastric area is usually indicative of an abdominal aortic aneurysm.
Step-by-step explanation:
Abdominal aortic aneurysm is usually indicated by a positive bruit or wide, diffuse pulsation in the epigastric area. A bruit is an abnormal sound heard when listening to the blood flow using a stethoscope. In the case of an abdominal aortic aneurysm, a bruit can be heard due to the turbulent blood flow in the weakened area of the aorta.