PMC5573120_01
Magnetic resonance angiography reveals that the pseudoaneurysm arises from the deep palmar arch (originated from the ulnar artery).
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Magnetic resonance angiography (MRA) imaging revealed an aneurysm arising from the deep palmar arch of the ulnar artery (Fig. 1).
Digital subtraction angiography showing the pseudoaneurysm being vascularized from the deep palmar arch. The deep palmar arch is an anatomically incomplete variant: the radial part of the incomplete arch is vascularized from a branch originating from the radial artery and the ulnar part by a branch from the metacarpal artery (from the third and fourth finger).
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Digital subtraction angiography (DSA) was performed, which showed that the aneurysm was vascularized from the deep palmar arch (Fig. 2).