title: Spontaneous thrombosis of an iatrogenic arteriovenous fistula of the kidney.
abstract: A 44-year-old woman underwent radial nephrotomy for a symptomatic stone in a caliceal diverticulum. Five days after an uneventful postoperative course of 1 week, she presented with gross hematuria. Routine ultrasound demonstrated a hypoechoic lesion in the kidney; color-coded sonography revealed an arteriovenous fistula. The hematuria ended before the scheduled angiography to embolize the fistula was performed. Repeated color-coded sonography revealed spontaneous thrombosis of the lesion. The follow-up examination 6 months later confirmed these findings. As traumatic arteriovenous fistulas have a good chance of spontaneous closure, invasive treatment should be postponed for as long as possible.
authors.affiliation: Department of Urology, Marienhospital, Ruhr-Universität Bochum, Herne, Germany.
authors.forename: J M
authors.initials: JM
authors.lastname: Garcia-Schürmann
authors.forename: H
authors.initials: H
authors.lastname: Sommerfeld
authors.forename: J
authors.initials: J
authors.lastname: Pannek
mesh_terms: D000328:Adult; D001158:Arteries / Q000002:abnormalities*; D001164:Arteriovenous Fistula / Q000000981:diagnostic imaging / Q000209:etiology* / Q000628:therapy; D004621:Embolization, Therapeutic; D005260:Female; D006417:Hematuria / Q000209:etiology; D006801:Humans; D007668:Kidney / Q000098:blood supply*; D007669:Kidney Calculi / Q000601:surgery; D009392:Nephrectomy / Q000009:adverse effects*; D015607:Stents; D014463:Ultrasonography; D014680:Veins / Q000002:abnormalities*