Hemangiomae
The
term hemangioma is used to refer to a common type of vascular birthmark.
The classically recognized hemangioma is a visible red skin lesion that
may be superficial, deeper in the skin, or a mixture of both.
Hemangiomas are not always present at birth (around 30%), but usually
become visible within a few months (70%). They are usually divided into
superficial, slightly raised, bright red lesions known as a capillary or
'strawberry' hemangioma or a deeper bluish lesion known as a cavernous
hemangioma. |
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What Is It?
Capillary hemangiomas are usually slightly raised and appear bright
red because the abnormal blood vessels are very close to the skin's
surface. Cavernous hemangioma appear blue because the abnormal vessels
are deeper under the skin. Hemangiomas are more common among females and
in premature babies.
Most hemangiomas undergo a rapid growth phase once they first appear
during which their volume and size increase rapidly. After the first
year most stop growing and enter a rest period during which the
hemangioma changes very little. Often they will then begin to turn white
and shrink slowly. Many will eventually disappear by themselves although
it impossible to know in individual patients if this will occur.
Hemangiomas can develop anywhere on the body, although 83% of them occur
on the head and neck. Because of this the most common issue with
hemangiomas is that they can be very disfiguring and it is frequently
very difficult for most sufferers (and parents if they are children) to
cope with the stares and comments that such lesions cause. There can be
additional concerns if hemangioma develop near the eyes, nose or mouth
because they can cause special problems. Occasionally when a hemangioma
is either growing or shrinking rapidly they can form painful ulcers
which can become infected.
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Tradititional Treatments
Often many dermatologists will not treat strawberry hemangiomas
instead allowing them to fade and shrink on their own. During the rapid
growth phase steroids can be helpful in reducing the thickness of the
hemangioma but they will not affect the redness.
Deep hemangiomas or compound hemangiomas (hemangiomas that have both
superficial and deep parts) can be treated a number of ways.
If the area is fairly small and not on the face, injection of the lesion
with steroids can be used. Larger hemangiomas however will require oral
steroids and a fairly large dose is needed.
Where hemangiomas do not respond to steroids, are problematic or
life-threatening, alfa-interferon is recommended. However spastic
dysplegia has been associated in 10-12% of children who have taken alfa-interferon
and so it should be used with caution.
Conventional surgery is indicated for hemangiomas that are life
threatening, deforming or do not respond to treatment. For facial
hemangiomas with no significant reduction in size between 2 and 3 years
of age, surgical intervention should be considered. Surgery may also be
indicated for hemangiomas that have been left alone and do not show
signs of shrinkage after a few years.
Other treatments include Cryosurgery (where the vascular marks are
frozen with an extremely cold substance sprayed onto the skin) or by
Electrodesiccation (where the affected vessels are destroyed with the
current from an electric needle). |
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Fotona Laser Treatment
Most hemangiomas when first diagnosed are superficial only. These can
be treated with a laser as soon as they are diagnosed, and early
treatment is key. The laser wavelength is absorbed by the oxyhemoglobin
(the protein molecules that make blood red) in the blood vessels of
hemangioma resulting in the shrinking of the vessels so that the result
is a less noticeable lesion. Repeated treatments can almost completely
remove superficial hemangiomas.
Since the blood vessels of cavenous hemangiomas are much deeper below
the surface of the skin than superficial ones is necessary to use a
laser that can penetrate much deeper to selectively target the vessels
of the lesion without causing damage to the surrounding tissue.
Fotona's DualisVP combines a KTP laser with a long pulse Nd:YAG laser
offers the perfect solution to vascular lesions such as hemangiomas. The
KTP laser emits a green laser at a wavelength that is absorbed in
oxyhemoglobin in order to treat superficial hemangiomas effectively. The
long pulse Nd:YAG laser penetrates to a depth of 5-6mm into the skin
allowing the effective treatment of cavenous hemangiomas. Independent
research shows that over 75% of patients with deep hemangiomas that are
treated with the Nd:YAG laser see a dramatic regression in the lesion.
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Before & After
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