Brachial artery aneurysm with "blue finger syndrome" after ligation of a remote brachial artery-cephalic vein fistula.

Upper extremity aneurysms are relatively infrequent when compared to other vessels in the body. However, a combination of factors occurring following arteriovenous fistula (AVF) ligation can lead to dilation of the brachial artery. Periodic follow-up after AVF creation can help prevent complications. We report a case of an immunosuppressed, patient with renal transplant who presented with delayed onset digital ischemia following ligation of a remotely created brachial artery-cephalic vein fistula.