Spontaneous aneurysm of a common digital artery: a rare entity.

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Aneurysms of arteries of the hand are rarely encountered. Literature reports such aneurysms in the distal ulnar artery, the palmar artery, and the digital arteries. Most are false aneurysms involving trauma-induced defects of the vessel wall. True aneurysms with intact intimal, medial, and adventitial layers of the arterial wall are more unusual. In this case report, we present a 77-year-old previously healthy lady who was diagnosed with a true aneurysm of a common digital artery when she presented with a pulsatile lump over her left palm.