Skin Cancer Archive

Scary or misleading claims about things that may cause cancer are so plentiful that it's hard to know which ones to take seriously. A new website developed by experts aims to provide reliable information about whether a particular cancer claim is true.

Most skin spots are harmless, but it's important to be able to distinguish them from skin cancers and precancers.

With summer approaching, you need to be more attentive about sun protection.

Men have many skin challenges as they age. They develop wrinkles, lines, spots, and discoloration. Older men also are at greater risk for the two most common skin cancers: basal cell carcinoma and squamous cell carcinoma.

Without adequate sun protection, these conditions can become more frequent and severe.

Ask the doctors

Q. I was worried about drying my nails with a lamp or light box at the nail salon because of the potential risk of cancer from the ultraviolet radiation, but my salon recently switched to LED lamps. Are they safer?

A. The light boxes used to cure polish during gel manicures, and to dry traditional nail polish, have raised some concern because — like tanning beds — they emit ultraviolet A (UVA) radiation, which is associated with a higher cancer risk. A 2014 study in JAMA Dermatology found that the level of UVA exposure associated with a gel manicure every two weeks probably isn't high enough to increase the risk of skin cancer significantly, but you are wise to be aware of the issue.

Sarcomas are a type of cancer that develops from the soft tissues (fleshy parts) of the body, as well as from bone and fatty tissue. This type of cancer is different from carcinomas. Carcinomas develop more frequently in the body's organs, especially those organs that contain glands. Examples of carcinomas include lung cancer, colon cancer, pancreatic cancer, breast cancer, prostate cancer.

Rhabdomyosarcoma is a cancer that forms in the skeletal muscles. Skeletal muscles attach to bones. They help the body move. Most rhabdomyosarcomas occur in children and teenagers.

What Is It?

A sarcoma is a cancer that develops from particular tissues, such as muscle or bone. In contrast, most cancers develop from organs that contain glands, such as the breast, colon, prostate and lung, among others.

There are two types of sarcoma: osteosarcoma, which develops from bone, and soft tissue sarcoma. Soft tissue sarcoma can arise from muscle, fat, nerves, cartilage, or blood vessels. Cancerous tumors can develop when abnormal cells in these tissues multiply and grow out of control. Scientists do not yet fully understand why these cells become abnormal. However, most cancers are thought to develop due to genetic changes (mutations).

Research we're watching

While more than three-quarters of Americans say that sun protection is important, less than half actually use it on a regular basis when they're heading outside, according to a survey by the American Academy of Dermatology. Some 28% of those polled said they rarely or never use sun protection, which includes using sunscreen, staying in the shade outside whenever possible, and wearing clothing such as hats or other items that can protect against the sun's rays. Sun exposure is the leading cause of skin cancers, affecting one in every five Americans, so the AAD says it's important that people take steps to protect themselves. The AAD recommends that you

• wear sunscreen with 30 SPF or higher
• stay out of the sun between 10 a.m. and 2 p.m., when its rays are the most intense
• use clothing to protect your skin, such as a hat and long-sleeved shirt.

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