Final answer:
Fibromuscular dysplasia is a medical condition that affects the walls of certain arteries, causing them to become abnormally thick and fibrous. It can be diagnosed by listening for a periumbilical bruit and using angiography to visualize the affected blood vessels.
Step-by-step explanation:
Fibromuscular dysplasia is a medical condition that affects the walls of certain arteries, causing them to become abnormally thick and fibrous. It primarily affects medium-sized arteries, including those in the kidneys, neck, brain, and abdomen. One characteristic of fibromuscular dysplasia is the presence of a periumbilical bruit, which is a whooshing sound heard over the abdomen when listening with a stethoscope. When diagnosing fibromuscular dysplasia, angiography, a type of imaging procedure, is often used to visualize the affected blood vessels and assess the extent of the disease.