[Middle aortic syndrome: a case report].

Middle aortic syndrome (MAS) results from a diffuse narrowing of the distal thoracic or abdominal aorta commonly involving both the visceral and renal arteries. Congenital, acquired, inflammatory, and infectious etiologies have been described. Symptoms typically occur within the first three decades of life and include hypertension, lower extremity claudication, and mesenteric ischemia. The condition is considered a life-threatening emergency as a result of the complications associated with severe hypertension. Diagnosis is made with magnetic resonance and computed tomography angiography. Surgical bypass grafting is the optimal method of treatment and must be tailored depending on the distribution of disease. We report one case of MAS treated with thoracic aorta to abdominal aorta bypass and reimplantation of the right renal artery.