Squamous cell Carcinoma

SQUAMOUS CELL CARCINOMA: THE SECOND MOST COMMON SKIN CANCER

There has been a good deal of education about malignant melanoma in recent years, but there are other types of skin cancers that one needs to be aware of as well. Squamous cell carcinoma is the second most common type of diagnosed skin cancer, yet many people have never heard of it. And the most commonly diagnosed skin cancer is actually basal cell carcinoma, not malignant melanoma. While it is important to be aware of malignant melanoma, it is also important to keep these other types of skin cancer in mind.

The outer layer of skin, or epidermis, is composed of squamous cells. Squamous cell carcinoma arises in these cells. Squamous cell carcinomas vary somewhat in appearance and may be mistaken for scabs, warts, or a rough patch of skin. However, they do not heal and may be prone to bleeding. They may appear as open sores with a raised border and a crusted surface over an elevated pebbly base. Any persistent sore which does not heal normally should be examined by a physician.

Persons with fair skin and light-colored eyes are at the greatest risk for developing squamous cell carcinoma, however anyone who has had substantial sun exposure may develop this cancer regardless of their skin color. Chronic inflammation and injury to the skin may also preclude development of squamous cell carcinoma.

If detected in the early stages, squamous cell carcinomas are almost always curable and removal leaves minimal damage. Removal is normally an outpatient procedure performed with a local anesthetic. In some cases, laser removal, cryosurgery (freezing) or radiation may be chosen to remove the growth.

It is important to examine your skin once a month for abnormal growths or wounds that don't heal. As well, taking preventative measures such as staying out of the sun between 10 AM and 2 PM, wearing sunscreen, and wearing a hat with a brim for protection of the face and ears can be helpful in preventing skin cancers. Avoid the use of tanning beds as the UV radiation from these devices can promote the development of skin cancers.

Medical Reviewers: 

Perry Robins, MD 

Alfred W. Kopf, MD 

Ronald G. Wheeland, MD 

Photographs Courtesy of: 

William A. Crutcher, MD 

Alfred W. Kopf, MD 

Mark Lebwohl, MD 

Ashfaq Marghoob, MD 

Leonard J. Swinyer, MD

Retrieved from: http://www.skincancer.org/squamous-cell-carcinoma.html