Houston Methodist. Leading Medicine

Hand FAQ

Question:

Have you ever heard of a false aneurysm in the hand? What can cause this kind of problem?

Answer:

An aneurysm is a thinning and bulging of a blood vessel wall. Abdominal aortic aneurysms (AAAs) are the most common and deadly form. Ninety-five per cent of all AAAs occur in the aorta (main artery coming off the heart) right below the arteries to the kidneys.

AAAs are most common in older adults with atherosclerosis weakening the blood vessel walls. Aortic aneurysms can be congential (present at birth). Or they can develop as a result of weight-lifting or other trauma.

A false aneurysm means there is blood leaking and trapped between two layers of the blood vessel walls. Blood vessels have three layers. Trauma or injury can puncture an artery and cause the layers to separate. With every beat of the heart, blood is forced between two layers causing a mass to form.

This type of aneurysm is more common close to the surface of the body such as in the hand or foot. The injury that starts the process is usually a puncture wound of some type. Yury A. Slesarenko, MD, et al. False Aneurysm of the Superficial Palmar Arch Causing Acute Carpal Tunnel Syndrome. In Orthopedics. June 2007. Vol. 30. No. 6. Pp. 493-494.

*Disclaimer:* The information contained herein is compiled from a variety of sources. It may not be complete or timely. It does not cover all diseases, physical conditions, ailments or treatments. The information should NOT be used in place of visit with your healthcare provider, nor should you disregard the advice of your health care provider because of any information you read in this topic.
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