Guide To The Symptoms Of Cowden Syndrome

Vascular Abnormalities

Vascular abnormalities are a common presentation in Cowden syndrome. The most prevalent types of vascular abnormalities are arteriovenous malformations, hemangiomas, and developmental venous anomalies. A hemangioma is a noncancerous growth or tumor on the body comprised primarily of tangles of blood vessels. An arteriovenous malformation is an abnormal clump of tangled blood vessels with arteries that connect to veins, which is an anatomical anomaly that causes a disruption in normal blood flow. A developmental venous anomaly is an abnormal and noncancerous growth containing small veins that centralize in an abnormal arrangement that appears similar to the spokes found on a wheel and drains into one bigger central vein. These venous malformations are most commonly found in the brain or spinal cord. Most patients who have vascular abnormalities from Cowden syndrome do not experience direct problems from them.

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