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Skin cancer what causes melasma
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The growth of several types of skin tumors characterized by the malignant growth of melanocytes.
Cause:
Melanoma skin cancer is often caused by too much exposure to the suns UV rays.
Examples include:
• Having had blistering sunburns at any time of a life.
• Getting intense sun exposure every now and then.
Things that make getting melanoma mote likely include your skin type, the color of your hair, and the color of your eyes.
Risk factors:
Several risk factors can make a person more likely to develop melanoma.
• Ultraviolent (UV) light exposure
• Moles- benign
• Fair skin, freckling, and light hair
• Personal history of melanoma or other skin cancers
• Weakened immune system
• Older age
• Male gender
• Xeroderma pigmentosum
Signs & Symptoms:
• Bad breath • Drooling • Bleeding from your mouth • Facial swelling • A change in food preference (from hard kettle to soft food) • A noticeable difference in chewing habits • A decrease in eating Diagnosis: Signs or symptoms the patient is having, doctor will do exams and tests to find out if its melanoma, non-melanoma skin cancer, or some other skin cancer. If melanoma is found other texts will be conducted to determine if it has spread to other areas of the body. Prognosis: Survival rates for the various stages of melanoma are based on patients who lived at least five or 10 years after being diagnosed. Factors that could affect survival rates are: • new developments in cancer treatment • a person’s response to treatment • age (older patients tend not to live as long at each stage of the disease) What are the treatments for Melanoma skin cancer: (based on the stage) • Surgery • Radiation therapy • Systemic treatment • immunotherapy targeted therapy • chemotherapy How does melanoma cancer affect the systems? Skin cell buildup forms a tumor, results in some symptoms such as irregular spots, red bumps, or scaly patches on the skin. Skin cancer most commonly affects areas of skin that are exposed to the sun but may develop almost anywhere on the body, like underneath fingernails and in the genital area. If left untreated, skin cancer can grow deep into the skin and spread through the rest of the body, causing serious complications.
Melanoma is a non-communicable disease and according to the Melanoma Institute of Australia, is a malignant skin cancer that affects thousands of individuals. It is a prevalent and serious non-communicable disease, making it an important issue in Australia. Both a biomedical perspective and sociological perspective must be considered to enable health practitioners to have a deep understanding about melanoma, and thus allow them to develop efficient and effective treatment and prevention methods.
The hair of the scalp is longer and more flexible, while the hair of the eyebrows tends to be short and stiff. Oval shaped hair shafts produce wavy hair, flat hair shafts create curly hair and hair shafts that are perfectly round create straight hair. There are also different types of melanin, a natural compound responsible for the production of color in the eyes, skin and hair. There is yellow, brown and black melanin, each produced by melanocytes located at the follicle base. With age, melanin production decreases, causing greying of hair. (Applegate & Saunders, 2001, pp
What is skin cancer ? first, Skin is the largest organ of the body . it gives our body protection from harms, injuries and infections. It also organize the body temperature and dispose of waste substances through the glands . out layer of the skin is called the epidermis and the layer underneath is known as the dermis . Skin cancer is type of disease where malignant cancer cells are to be found the outer layer of a person's skin and is the uncontrolled development of the irregular skin cells .It occurs when unrepaired DNA damage to skin cells caused by ultraviolet radiation from sunlight or genetic defects, that lead the skin cells to duplicate rapidly and form malignant tumors. there are three main types of skin cancer which are basal
Skin cancer is a significant public health issue in Australia. Exposure to ultraviolet radiation emitted by the sun in the UVA and UVB wavelengths is the primary cause. Australia has been a world leader in efforts to protect the ozone layer, the main line of defense against ultraviolet radiation emitted by the sun. Ultraviolet radiation induces the formation of thymine dimers that cause mutation of skin cells if not repaired before DNA replication. Mutations of tumor suppressor genes can lead to uncontrolled cell growth. Ultraviolet radiation also causes immunosuppresion that allows skin cancers to become established. Basal cell carcinoma, squamous cell carcinoma, and melanoma are types of skin cancer caused by sun exposure, though each form is associated with a different pattern of exposure. Australia has the highest rate of skin cancer in the world, due to a combination of tropical latitude, fair-skinned population, outdoor lifestyle, and high amount of ambient ultraviolet radiation. Widespread opinions about tanning and health benefits of sunlight lead many Australians to intentionally overexpose themselves to the sun. State cancer councils have developed sun safety and awareness campaigns, such as “Slip! Slop! Slap!” and “SunSmart,” to educate the population about sun exposure and encourage early detection of skin cancers. Gradual changes in knowledge and behavior indicate that the fight against skin cancer can be won.
Malignant Melanoma is a type of malignant cancer that affects the melanocytes. A melanocyte produces the pigmentation in our skin and melanin gives us the color to our skin. These cells occur in the skin and can be found in other parts of the body. It is important to realize that melanoma can begin in any part of the body that can contain a melanocyte. Melanoma is considered less common than other skin cancers. It is a cancer that can be very dangerous if not detected early. Although in most cases it is diagnosed in time and can be cured. Many people are diagnosed with this cancer and it is said that 160,000 cases are diagnosed a year. ( ). In men a common site is on their back and for a woman is on their legs.
Melanoma is a very serious type of skin cancer. The cancer starts in skin cells known melanocytes. Even though melanoma primarily affects skin cells, it also can grow in the eyes (uveal melanoma). Melanocytes are made up of melanin, which provides skin color and protects the deeper layers of the skin from the sun’s harmful ultraviolet (UV) rays.
The first sign of melanoma is often a change in the size, shape, or color of an existing mole or the appearance of a new mole. Men most commonly develop melanoma on the trunk, particularly the back, and women on the legs or arms. Melanoma develops in a manner similar to other cancer types. A cell's DNA genes, which control cell division and reproduction, become damaged. The damaged genes cause the cell to divide and grow without control or order, eventually becoming a malignant tumor.
Cancer has been an active concern in our society for the past couple decades, since we truly discovered the nature of cancer and the potency it brings along with it. However, it was not until the mid-20th century that scientists were beginning to truly understand the origin of cancer. Scientists dating back all the way to the Renaissance, when they first began performing autopsies to learn more about the human body and form, noticed abnormalities but it never clicked that it was something much worse than it seemed. Research has continued since then, and it has continued to thrive even to this day. When James Watson and Francis Crick discovered DNA and it’s chemical structure in 1962, it opened up doors that even they could not expect. With the understanding of DNA and how it affected the way we look at life, came the beginning of the understanding of mutated DNA (which is a cause of the growth of cancerous cells). In this past century, researching scientists discovered that cancer is linked with the DNA that resides in a cell’s nucleus. By ways of damage to the cells via chemicals or radiation, or even introduction of a new DNA, the cancerous cells begin to form and duplicate. We are learning more and more about cancer and how to fight it, but we still have much more to learn.
Sun shine contain ultraviolet ray which can cause the sunburn or even skin cancer. According to Cancer Council in Australia, Australia has highest incident rate of skin cancer in the world. More than 430000 Australians are diagnosed with skin cancer each year. There are approximately 60 percent of people who have got skin cancer will survive greater than five years after they diagnosis (Cancer Council Australia, 2014). In order to protect people under the sun, the sun protective behaviour is significant necessary.
Melanin is the body’s way of protecting the skin this is why darker people tan easier because their melanocytes produce more melanin.
Skin cancer is a disease in which malignant cancer cells are found in the outer layer of the human skin. This particular cancer is one of the most common cancers among the U.S. population, affecting and spreading over more than one million people a year. “Skin cancer is categorized into two separate groups being; malignant melanomas and non-melanoma cancers.” (Adam, 2013)
Basal and squamous cell skin cancer are the most common forms of skin cancer. Multiple studies have shown that these cancers are almost always connected to large amounts of sun exposure. This can come from things like outdoor sports, performing something outdoors with little coverage from clothing, and getting multiple severe sunburns. You can see signs of skin cancer inside and outside of your body. Rough, thick, dry skin patches are common symptoms, but things
A study of Melanesians found that the darker skinned inhabitants possessed large, singly dispersed melanosomes, whereas the lighter skinned inhabitants had smaller melanosomes bound in complexes . This infers that the large single state melanosome is directly related to dark skin. The size of these melanosomes are not specific to "race". For example, Africans with light skin contain the smaller ...
UV radiation causes significant damage to human skin, in the form of sunburns, aging, skin cancer, and nonmelanoma tumors. Human skin damage is primarily a result of tanning. The
Skin cancer is a disease where cancer (malignant) cells are found on the outer layer of the skin (epidermis). The three types of cells found in the epidermis are squamous cells, basal cells, and melanocytes. These cells in time grow to be cancerous. Thus, the three types of skin cancers are squamous cell, basal cell, and melanoma. Melanoma is the most deadliest and destructive type of cancer. (“Skin Cancer” infotrac.com) The number of people with melanoma has risen in Scotland from 3.5 in 1979 to 10.6 per 100,000 in 1998 for men and 7.0 to 13.1 for women. (Miller 945) Squamous cell and Basal cell skin cancer can kill up to 2,200 people a year in the United States. (Sommerfield SIRS.com) Basal cell, being the most common type of skin cancer, is the cancer that about 75 percent of the people have. (“Skin Cancer “ infotrac.com) Melanoma is mostly seen in older men but ever since tanning came in during the 1970’s, it has increased in women 60 percent around the ages 15-29 over the past three decades.(Sommerfield SIRS.com) “And basal cell and squamous cell cancers are increasing at a rate of about 5 percent per year”(Sommerfield SIRS.com).