This document discusses several medical conditions that affect blood vessels and other tissues: - Fibromuscular dysplasia causes high blood pressure and other issues due to narrowing of medium-sized arteries. Symptoms vary by which arteries are affected. - Monckeberg medial calcific sclerosis involves hardening of medium-sized arteries in the legs, typically in older adults, and often does not cause problems. - Homocystinuria results from an amino acid metabolism defect and can lead to problems affecting blood vessels, brain function, eyes, bones, and other tissues. - 11 beta hydroxylase deficiency is a type of congenital adrenal hyperplasia that causes high blood pressure and