RT Book, Section A1 Laredo, James A1 Lee, Byung Boong A2 Dean, Steven M. A2 Satiani, Bhagwan A2 Abraham, William T. SR Print(0) ID 1105290841 T1 CONGENITAL ARTERIOVENOUS MALFORMATIONS T2 Color Atlas and Synopsis of Vascular Diseases YR 2015 FD 2015 PB McGraw-Hill Medical PP New York, NY SN 9780071749541 LK accesssurgery.mhmedical.com/content.aspx?aid=1105290841 RD 2024/10/10 AB A 35-year-old Caucasian man with a pulsating painful flank mass was referred for further evaluation and treatment. The mass had been present for over 15 years and had enlarged over the past year along the right lower back and flank in an area underlying a birth mark (Figure 42-1). Examination confirmed a 15-cm tender mass with overlying erythematous skin changes. A thrill was palpable over the mass, and a continuous bruit was present on auscultation.