title: Focal Renal Arterial Fibromuscular Dysplasia Demonstrated via Intravascular Ultrasound Image.
abstract: A young male suffering from renovascular hypertension was admitted. His initial arteriogram highlighted a focal stenosis of the right renal artery. His intravascular ultrasound (IVUS) revealed increasing medial layer thickness accompanied by a mixture of both high and low echoic materials in this layer. There was also mild thickening of the intimal layer. The diagnosis of medial fibroplasia and intimal fibromuscular dysplasia (FMD) was made. Balloon angioplasty decreased the volume of dysplastic tissue. The IVUS images facilitated both the initial diagnosis of focal renal arterial stenosis and the evaluation of the mechanism of dilatation by angioplasty.
authors.affiliation: Division of Cardiology, Niigata Prefectural Central Hospital, Joetsu, Niigata, Japan.
authors.forename: Osamu
authors.initials: O
authors.lastname: Ogawa
authors.forename: Ritsuo
authors.initials: R
authors.lastname: Watanabe
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Shimizu
authors.forename: Fumiaki
authors.initials: F
authors.lastname: Masani
keywords: fibromuscular dysplasia; intravascular ultrasound; percutaneous renal angioplasty
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