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Basic facts about skin cancer:
Skin cancer is common!
Skin cancer can by deadly
Ultraviolet light from the sun causes skin cancer
Skin cancer can be prevented with good sun protection
Early detection is key.
Basal Cell Carcinoma (BCC) Basal cell carcinoma is slow growing and does not usually spread to distant parts of the body. If left untreated, however, basal cell cancer can spread to nearby areas and invade the tissues beneath the skin. Warning signs for basal cell carcinoma include a new shiny pink bump or a persistent red patch. They can also appear as sores that ooze, bleed and won’t go away. Skin growths that fit these characteristics are highly suspicious. When a physician suspects basal cell carcinoma, a skin biopsy is required to confirm the diagnosis. After confirmation, treatment will vary based on location and tumor subtype. Aggressive tumors, recurrent tumors, or tumors on cosmetically important locations like the nose, lip, or ear are usually surgically removed with a specialized technique called Mohs surgery. Tumors in other locations can often be treated with standard surgical removal.
Learn more about basal cell carcinoma from: Skin Cancer Foundation American Academy of Dermatology Squamous Cell Carcinoma (SCC)  About
16% of skin cancers are squamous cell carcinomas. Chronic exposure
to sunlight is the cause of most cases of squamous cell carcinoma.
That is why tumors appear most frequently on sun-exposed parts of
the body: the face, neck, bald scalp, hands, shoulders, arms, and
back. The rim of the ear and the lower lip are especially vulnerable
to the development of these cancers.
Although squamous cell carcinomas usually remain confined to the skin, they tend to be more aggressive than basal cell carcinoma. They will eventually penetrate the underlying tissues if not treated. In a small percentage of cases, they spread (metastasize) to distant tissues and organs. When this happens, they can be fatal. For these reasons, squamous cell carcinomas must be treated aggressively. Squamous cell carcinomas can appear as wart-like growths that crust and bleed. They can also develop as persistent red patches or thick rough bumps. Any sore that oozes and bleeds is suspicious. Sores on the lips, including small ulcers, could also be skin cancer. When a physician suspects squamous cell carcinoma, a skin biopsy will be performed to confirm the diagnosis. After confirmation, the treatment is similar to that for basal cell carcinoma. The treatment will vary based on location and tumor subtype. Aggressive tumors, recurrent tumors, or tumors on cosmetically important locations like the nose, lip, or ear are usually surgically removed with a specialized technique called Mohs surgery. Tumors in other locations can often be treated with standard surgical removal. Following treatment, yearly follow-up is necessary for people who
have had squamous cell carcinoma because, just like basal cell carcinoma,
one-third of patients will develop a new tumor within three to five
years. Learn more about squamous cell carcinoma from: Skin Cancer Foundation American Academy of Dermatology Melanoma  Of
the three main types of skin cancer, melanoma is the least common.
About 4% of skin cancers are melanoma. While melanoma is less common,
it is more dangerous.
Melanoma arises from melanocytes, the cells in the skin that make pigment (coloring) and are responsible for tanning. Because melanoma cells still produce pigment, these tumors often appear brown or black. Melanoma can appear anywhere, but is most common on the back, chest, and legs. Sometimes it arises in an existing mole which begins to change in shape and color. Other times it begins on normal skin and looks like a new mole at first, but continues to grow and change. Melanoma can strike the young as well as the elderly. In fact, melanoma is the most common cancer in women ages 25-29. If melanoma is detected in its earliest stages, before it has spread, the cure rate is very high. However, melanoma is much more likely than the other forms of skin cancer to metastasize or spread to other parts of the body. And melanoma can be very dangerous once it has spread. Most cases of melanoma that have metastasized can not be cured. That is why melanoma accounts for only 4% of skin cancers, but 77% of skin cancer deaths. Four clues to detecting melanoma are known as the ABCD’s of
melanoma: Asymmetry A skin biopsy is necessary to confirm the diagnosis of melanoma. Once confirmed, the tumor must be surgically removed. When a melanoma is surgically removed, a margin of normal skin surrounding the tumor is also removed. After removal, the depth of tumor invasion will be measured by a pathologist using a microscope. That depth, known as the Breslow depth, is the most important factor in determining prognosis. Because melanoma is so dangerous, it is important to watch the
skin for any changing moles. Those who are at greatest risk include
people with fair skin, people with lots of moles, and those with
a family member who has had melanoma. Any mole that appears to be
changing is considered highly suspicious and should be examined
and probably biopsied. Learn more about melanoma from: Skin Cancer Foundation American Academy of Dermatology
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Basal
cell carcinoma accounts for about 80% of all skin cancers. This
type of tumor usually develops in sun-exposed areas, especially
the face, neck and ears. Once considered a disease of the elderly,
basal cell carcinoma is now frequently seen in younger people. The
rise among young people is primarily due to a lifestyle shift towards
outdoor activity and increased sun exposure. 
Following
treatment, yearly follow-up is necessary for people who have had
basal cell carcinoma because one-third of patients will develop
a new tumor within three to five years.
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