Vascular Malformations

What is a vascular malformation?

Vascular malformation is an abnormal collection of blood vessels that can occur anywhere in the body. In our body, arteries take oxygenated blood from the heart to the peripheral cells in the body. The arteries become smaller to become capillaries at the microscopic level, from where cells get oxygen and nutrients. The capillaries then take deoxygenated blood to the veins, which then take this blood to the heart and the lungs for oxygenation.

A vascular malformation is a condition where this network of vessels does not develop normally.

There are various types of vascular malformations in the body. The common types seen in practice are venous malformations and arterio-venous malformations. Venous malformations look like bluish or skin colored soft lumps under the skin or they can be extremely large causing gross enlargement or deformity of the affected part. Arterio-venous malformations are usually larger is size at presentation associated with high blood flow in the affected part that is usually obvious to the patient.

Where can they occur?

They can occur anywhere in the body. One of the common areas affected is face, and head and neck region. They are also common in the limbs. One of the most critical locations is presence of arteriovenous malformations within the brain.

What is the age group?

Any age group can present first time with vascular malformation. Most of these grow with time. They are commonly seen in young patients. However, in some patients these present when they are older having slowly grown over the years.

What are the symptoms?

Symptoms depend on their location in the body. The ones inside the brain are life-threatening. On the other hand, one of the commoner presentations can be as a soft lump in the facial region causing facial asymmetry that can be cosmetically disfiguring. They can also undergo repeated bleeding and can invade surrounding body structures, causing problems eventually.

What are the treatment options?

These depend on the site, location and symptoms of the vascular malformation. These include minimally invasive treatment methods or surgery. Majority of the time, we can take care of them or at least control them using minimally invasive techniques. These minimally invasive techniques include sclerotherapy and embolization.

Sclerotherapy involves injecting chemical into the malformation to block from inside.

Embolization involves blocking blood supply to the malformation using small catheters introduced through hand or groin.

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Mt Alvernia Hospital Medical Centre Block A

820 Thomson Road #06-06

Singapore 574623