About Moles and Malignant
Melanomas:
What are moles?
The
name "Mole" is given to the brown spots that are found on the skin.
They are different from freckles that usually are very light brown and appear in
patches in the nose, cheeks and sometimes chest, shoulders and back (if exposed
to the sun).
Moles occur in most skin types. They can occur on
almost every part of the skin, although they are uncommon on the palms of the
hand or soles of the feet.
They can range from very
small (less than a millimetre across) to being very large - sometimes up to
several centimetres across.
They can be flat or raised
from the surrounding skin surface. They can range in colour from very light
brown to very dark, almost looking black.
Some can have hair growing
out of them.
Moles are collections of
cells that contain the brown pigment called Melanin. These cells are called
Melanocytes.
Are Moles dangerous?
Normal moles are not at
all dangerous. However, they can change
into malignant melanomas, which are very dangerous.
What are malignant Melanomas?
Melanomas are skin cancers
arising from the melanocytes (skin cells containing the brown pigment Melanin). They are the most malignant of all of the skin cancers.
When they first form, Melanomas
are in the surface of the skin only. At this point they can be completely cured
if they are completely excised (cut out by a surgical operation). If they are
left, or only partially removed, they continue to grow.
As they grow deeper, they
can penetrate through the skin and get into the blood stream or into the
lymphatic vessels under the skin. At this stage they can spread rapidly,
going to the local lymph nodes and then on to the
liver or brain. At this stage the condition is known as metastatic melanoma, and
there is very little that can be done to stop it spreading further and
eventually killing the patient.
How many people die of Malignant Melanoma each year?
Over 2,000 people die of
Malignant Melanoma each year in the UK.
Malignant melanoma is the
commonest cancer in young people between the ages of 15 and 34. More females
than males get it - but more males die of it than females. This may be due to
the fact that females appear to be more health conscious and seek advice earlier
if they suspect something is wrong with them
Survival from Malignant Melanoma and the role of Mole Screening
Due to early detection and
removal of malignant melanoma before it spreads, survival rates are over 75% in
men and over 90% in women. However, to keep these survival rates high - and to
get them higher still - it is essential to find malignant melanoma as soon as
possible. this is where mole screening and early excision can be life-saving,
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