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The Skin Cancer program at The University of Arizona Cancer Center at Dignity Health St. Joseph’s Hospital and Medical Center is dedicated to the prevention, diagnosis and treatment of all types of skin cancer, including rare skin cancers – such as merkel cell carcinoma, dermatofibrosarcoma protuberans (DFSP) and other rare cutaneous tumors. Our disease-specific, medical and surgical oncologists serve the needs of our patients, as well as participate in important research and clinical trials.
Skin cancer is the most frequently diagnosed cancer in the United States. According to the American Academy of Dermatology, 5.4 million cases of non-melanoma skin cancer occurred in the U.S. in 2012, including basal cell carcinoma and squamous cell carcinoma. In the same year, according to the Centers for Disease Control and Prevention, 67,753 Americans were diagnosed with melanomas of the skin.
The most frequently occurring form of skin cancer, the Skin Cancer Foundation describes basal cell carcinoma as an abnormal growth or lesion that arises in the skin’s basal cells, which line the deepest layer of the epidermis, the outermost layer of the skin. Basal cell carcinoma often look like red patches, pink growths, open sores, shiny bumps or scars and are usually caused by a combination of cumulative and occasional intense sun exposure.
Basal cell carcinoma rarely spreads beyond where it originally appears on the body. Only in exceedingly rare cases can it spread and become life-threatening.
Squamous cell carcinoma is caused by a growth of abnormal cells arising in the squamous cells, which compose most of the skin’s upper layers (the epidermis). Squamous cell carcinomas often look like warts, open sores, elevated growths with a central depression or scaly red patches. They may bleed or crust over. They can become disfiguring and sometimes deadly.
Squamous cell carcinoma is caused mainly by cumulative effects of ultraviolet (UV) exposure over a lifetime. Daily year-round exposure to the sun’s UV light, more intense exposure in the summer months and the UV light produced by tanning beds all add to the damage that can lead to squamous cell carcinoma.
Warning signs, prevention and treatment information about squamous cell carcinoma can be found at the Skin Cancer Foundation website.
According to the American Cancer Society, melanoma is a cancer that begins in the melanocytes, the pigment-producing cells located in the bottom layer of the epidermis. Most melanoma cells still produce the substance melanin that results in pigment, so melanoma tumors typically are brown or black. Some melanomas, however, don’t produce pigment and can appear pink, tan, or even white.
Melanoma is much less common than basal cell and squamous cell skin cancers, but it is far more dangerous. Like basal cell and squamous cell cancers, melanoma is almost always curable in its early stages. But it is much more likely than basal or squamous cell cancer to spread to other parts of the body if not caught early.
Depending on the stage when it’s diagnosed, melanoma can be treated with surgery, radiation therapy, targeted therapy or biologic therapy. If you have been diagnosed with melanoma, call The University of Arizona Cancer Center at St. Joseph’s, please call 888.670.6341 to meet with a skin cancer specialist, and better understand your treatment options.
Warning signs, risk factor and treatment information about melanoma can be found at Skin Cancer Foundation.
According to the International Transplant Skin Cancer Collaborative, organ transplant patients are up to 65 times more likely to develop skin cancer than people without transplants. Our multidisciplinary skin cancer team works closely with the lung transplant group at the Norton Thoracic Institute to educate and treat at risk patients.
For more information about skin cancer or to schedule an appointment at The University of Arizona Cancer Center at St. Joseph’s, please call 888.670.6341.
A rare and aggressive skin cancer, Merkel cell carcinoma presents a high risk of recurring and spreading (metastasizing) throughout the body. According to Merkelcell.org, Merkel cells are found in the skin where their key function is as touch receptors. Merkel cell carcinoma occurs when an uncontrolled growth of Merkel cells develop in the skin.
Merkel cell carcinoma does not have a distinctive appearance. It usually develops on sun-exposed skin as a painless, firm, flesh-colored red or blue bump. It will grow rapidly and/or break down the overlying skin. Diagnosis usually requires a biopsy. Most common factors for those at risk of developing MCC are:
Information, frequently asked questions and treatment information about Merkel cell carcinoma can be found at Merkelcell.org. To schedule an appointment or find out more about our skin cancer program at The University of Arizona Cancer Center at St. Joseph’s, call 888.670.6341.
Dermatofibrosarcoma protuberans (DFSP) is a rare, slow-growing malignant tumor that develops in the deep tissues of the skin and, using a tentacle-type approach, can grow into surrounding fat, muscle and bone. It often presents as a small, firm patch of skin, approximately one to five centimeters in diameter.
Dermatofibrosarcoma Protuberans (DFSP) is not gender specific as to whom it targets; however, it is more common among people age 20 to 50. According to Sarcomahelp.org, there are several variations of DFSP that can be identified under a microscope:
Treatment options for Dermatofibrosarcoma Protuberans (DFSP) include Mohs Micrographic Surgery, or wide local excisions.
To schedule an appointment or find out more about our skin cancer program at The University of Arizona Cancer Center at St. Joseph’s, call 888.670.6341.
According to the Centers for Disease Control (CDC), protecting yourself and those you love from ultraviolet radiation (UV) is important year-round, not just during the summer months. Easy options for protection from UV radiation include the following:
For more information on how to reduce your risks of skin cancer, visit http://www.cdc.gov/cancer/skin/basic_info/prevention.htm.