There are some interesting statistics
regarding skin cancer that are not all that well known. Skin
cancer is the most common type of cancer in the United
States. There are more than 3.5 million cases of skin cancer
diagnosed annually. This is more than the total of breast,
prostate, lung and colon cancers combined. One in five
Americans will develop skin cancer in their lifetime. Because
many skin cancers are caused from sun exposure, there is worldwide
distribution of skin cancer. However lighter-skinned people are
most prone to develop skin cancers. The ultra-violet (UV)
rays of the sun and from tanning beds can destroy DNA, and the skin
cannot always repair itself.
There are three most common types of skin
cancer: basal cell carcinoma (BCC), squamous cell carcinoma (SCC),
and Melanoma. Basal cell carcinoma is the most common
type. This type usually will show up on the head, neck and
back of hands ̶ areas of greatest sun exposure.
However, it can also show up on the trunk, arms and legs. It
grows slowly but can grow wide and deep destroying skin tissue and
bone. Those with greatest risk of BCC have fair-skin with
light hair and blue or gray eyes. Also those who spend a lot
of time outdoors without sunscreen or protective clothing,
who are on immune system suppressing medications, and
long-term or over exposure to X-rays are susceptible to developing
skin cancer.
Squamous cell carcinoma is the most common
type of skin cancer in fair-skinned people, but people of all skin
types can get SCC. The same people as above can get SCC, but
additional predispositions include exposure to cancer-causing
chemicals, have previously seriously burned skin, sores or ulcers
on the skin, and those who spend large amounts of time near heat
sources.
Melanoma is the most serious form of skin
cancer. It begins in the pigment-producing cells without
warning or it can begin in a mole. One American dies every
hour from melanoma. Risk factors include being Caucasian,
having biological relatives with melanoma, having more than 50
large or unusual moles and previous skin cancers. The
ABCDE Rule for recognizing melanoma is
Asymetry, Border irregularity,
Color (most often tan, brown or black, but also
red, white or blue), Diameter (often larger than 6
millimeters), and Evolving (a change in size,
shape, color, or a “different” look). Individuals who are
seriously sunburned as children have double the chance of
developing melanoma.
Prevention of skin cancers cannot be complete,
but protection can be implemented. The generous use of
sunscreen with SPF 30 or more and being water resistant is of great
help. This should be used on cloudy and hazy days as
well as bright sunny days since the UV rays are still
present. Protective clothing (long sleeves, long pants,
hats), umbrellas, sunglasses and staying in the shade will prevent
strong exposure to the damaging rays of the sun. Because
Vitamin D requires sunlight for synthesis, taking additional
Vitamin D is considered good practice.
Resources come from the
Skin Cancer Foundation and the American Academy of
Dermatology.
Pat Crouch, RN
Faith Community Nurse
St. John Lutheran Church
Country Club Hills, IL USA