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DOI:10.2214/AJR.05.0281
AJR 2006; 187:1463-1469
© American Roentgen Ray Society

Clinical Observations

Segmental Arterial Mediolysis: CTA Findings at Presentation and Follow-Up

Maren Michael1, Urs Widmer2, Simon Wildermuth1, Andre Barghorn3, Stefan Duewell4 and Thomas Pfammatter1

1 Institute of Diagnostic Radiology, University Hospital of Zurich, Raemistrasse 100, CH-8091 Zurich, Switzerland.
2 Department of Medicine, University Hospital of Zurich, Zurich, Switzerland.
3 Department of Pathology, University Hospital of Zurich, Zurich, Switzerland.
4 Institute of Radiology, Kantonsspital, Frauenfeld, Switzerland.

OBJECTIVE. Segmental arterial mediolysis is a rare noninflammatory vascular disease of the abdominal splanchnic arteries. The purpose of our study was to retrospectively describe the CT angiography (CTA) findings of this disease and the evolution of those findings over time in five patients.

CONCLUSION. Comparison of CTA and digital subtraction angiography suggests that CTA is useful to diagnose symptomatic segmental arterial mediolysis. Midterm CTA follow-up (median, 3 years) indicates that segmental arterial mediolysis lesions may resolve or remain unchanged.

Keywords: cardiovascular disease • coil embolization • CT angiography • segmental arterial mediolysis


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