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Hi, my name is Jessica Dorsey. I am a board-certified dermatologist and fellowship-trained Mohs surgeon and today I’m going to be talking to you about how we diagnose skin cancer.
So, skin cancer is extremely common and it’s increasing in its incidence. It affects one in five people. Basal cell carcinoma and squamous cell carcinoma are the most common types and melanoma is one of the more serious types of skin cancer.
For melanoma, there’s a nice mnemonic that we call the ABCDEs of melanoma where A stands for asymmetry meaning the lesion itself will not be symmetrical or mirror image of each side. B stands for border so if you have a spot that has an irregular border you may want to come in and see a board-certified dermatologist for that. C stands for color which means color change within the mole or color variation, so you can have different hues of brown or black or red or blue, etc. D stands for diameter greater than six millimeters or greater than a pencil eraser, and E stands for evolving, so anything that is new, changing, bleeding, itching, symptom change, that would be a clue for you to come in.
If you think you have skin cancer it is important to see a board-certified dermatologist because they have had over three years of specialized training in the diagnosis and treatment of skin cancer. If your doctor is suspicious for a skin cancer, they may perform a biopsy and that involves numbing the skin with a local anesthetic and then performing either a shave biopsy or a punch biopsy. A shave biopsy is a thin sliver of the tumor where they can send it off to the lab and have it tested. A punch biopsy goes a little bit deeper and would require usually a few stitches placed.
So, the most common locations for skin cancer are usually going to be your sun-exposed areas. Although they can occur in almost every area of the body your basal cells and your squamous cell carcinomas are more likely to be found on the head such as the nose, the tops of the ears, the scalp, and also the backs of the hands. Your melanomas are going to be found in men usually on the trunk or on the head and neck and then in women more often on the extremities such as the legs and arms. If you have any questions regarding skin cancer, dermatologic surgery, Mohs surgery, or any other skin-related concern, please reach out to the U.S. Dermatology Partners location nearest to you. Video Rating: / 5
Have you heard that hormone therapy causes cancer? Is this true? Learn about hormones in this video as Layne goes over a brief history of hormones and why it’s important to know. Layne also talks about how not all forms of hormones are the same. Bio identical hormones are different than those that have been chemically altered to allow for patenting. Video Rating: / 5
Hormone therapy went from being one of the most prescribed treatments for menopausal women to a falling out of favour because of links to breast cancer. Women’s health expert Dr. Jen Gunter breaks down how those risks have been overstated and how hormone therapy may not be for everyone but may be good for many.
#menopause #hormonetherapy #cbcnews
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The National is the flagship of CBC News, showcasing award-winning journalism from across Canada and around the world. Led by Chief Correspondent Adrienne Arsenault and Ian Hanomansing, our team of trusted reporters help you make sense of the world, wherever you are. The National was named Canada’s Best National Newscast by the Canadian Screen Awards and RTDNA Canada. Video Rating: / 5
0:00 Introduction
2:16 Causes of Skin Cancer
3:45 Symptoms of Skin Cancer
4:11 Diagnosis of Skin Cancer
5:17 Treatment of Skin Cancer
Skin cancers are cancers that arise from the skin. They are due to the development of abnormal cells that have the ability to invade or spread to other parts of the body.[10] There are three main types of skin cancers: basal-cell skin cancer (BCC), squamous-cell skin cancer (SCC) and melanoma.[1] The first two, along with a number of less common skin cancers, are known as nonmelanoma skin cancer (NMSC).[5][11] Basal-cell cancer grows slowly and can damage the tissue around it but is unlikely to spread to distant areas or result in death.[5] It often appears as a painless raised area of skin that may be shiny with small blood vessels running over it or may present as a raised area with an ulcer.[1] Squamous-cell skin cancer is more likely to spread.[5] It usually presents as a hard lump with a scaly top but may also form an ulcer.[2] Melanomas are the most aggressive. Signs include a mole that has changed in size, shape, color, has irregular edges, has more than one color, is itchy or bleeds.[3]
More than 90% of cases are caused by exposure to ultraviolet radiation from the Sun.[4] This exposure increases the risk of all three main types of skin cancer.[4] Exposure has increased, partly due to a thinner ozone layer.[5][12] Tanning beds are another common source of ultraviolet radiation.[4] For melanomas and basal-cell cancers, exposure during childhood is particularly harmful.[6] For squamous-cell skin cancers, total exposure, irrespective of when it occurs, is more important.[4] Between 20% and 30% of melanomas develop from moles.[6] People with lighter skin are at higher risk[1][13] as are those with poor immune function such as from medications or HIV/AIDS.[5][14] Diagnosis is by biopsy.[3] Video Rating: / 5
See what melanoma and non-melanoma skin cancers look like and how they develop. Video Rating: / 5
