Word: melanoma
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...antiwrinkle cream Retin-A may have an important side effect: it reverses a condition that sometimes leads to cervical cancer, and it can erase the moles that are precursors of the lethal skin cancer melanoma...
...Frank Garland sure know how to put a cloud over a sunny day. Since 1990 the two brothers and their research associate Edward Gorham, all San Diego-based epidemiologists, have spread a highly unsettling message: liberal use of sunscreens may actually promote a deadly form of skin cancer called melanoma rather than protect people from...
...cell cancers develop slowly, spread rarely and are nearly 100% curable. An additional 130,000 skin cancers affect the pancake-shaped cells that form the skin's upper layers. Although highly treatable, these squamous-cell carcinomas grow faster than basal-cell tumors and annually kill 2,300 Americans. Malignant melanoma, which ravages the skin's pigment-producing cells, is the most unforgiving: it will strike twice as many Americans in 1993 as in 1980. Nearly 7,000 will die this year...
...wave ultraviolet-B portion of the sun's radiation as the main culprit in causing basal- and squamous-cell cancer. (Sunburns are also caused by UV-B radiation, wrinkles by the weaker UV-A part of the spectrum.) Since no animals other than humans and opossums suffer from malignant melanoma, researchers still do not know exactly what causes that more deadly disease. Most dermatologists have long assumed that sunburn-causing UV-B must be a greater threat than UV-A. As a result, sunscreen manufacturers originally concentrated on blocking UV-B. The most powerful formulas, developed in the past decade...
...caught early, the skin cancer called malignant melanoma is curable. If not, it's almost always fatal. But a new treatment under study at the John Wayne Cancer Institute in Santa Monica, Calif., appears at least to prolong lives. Researchers injected patients with a tuberculosis vaccine mixed with melanoma cells. Result: average survival went from seven to 23 months, with some staying cancer free for eight years. The doctors warn that an approved vaccine could take a decade...