What layer of skin does melanoma start?

About melanoma
The deepest layer of the epidermis, located just above the dermis, contains cells called melanocytes. Melanocytes produce the skin's pigment or color. Melanoma begins when healthy melanocytes change and grow out of control, forming a cancerous tumor.
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Where does melanoma usually begin?

They most often develop in areas that have had exposure to the sun, such as your back, legs, arms and face. Melanomas can also occur in areas that don't receive much sun exposure, such as the soles of your feet, palms of your hands and fingernail beds. These hidden melanomas are more common in people with darker skin.
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What does the start of skin melanoma look like?

Border that is irregular: The edges are often ragged, notched, or blurred in outline. The pigment may spread into the surrounding skin. Color that is uneven: Shades of black, brown, and tan may be present. Areas of white, gray, red, pink, or blue may also be seen.
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Does melanoma affect the dermis?

TYPES OF MELANOMA

Although melanoma is the rarest of the skin cancers, it is considered the most serious type. It can easily spread into deep layers of skin as well as to lymph nodes and other organs. The skin's layers include the epidermis (outer layer), dermis (inner layer) and hypodermis (subcutaneous tissue).
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Does melanoma always start on the surface?

Melanomas can develop anywhere on the skin, but they are more likely to start on the trunk (chest and back) in men and on the legs in women.
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What Does Skin Cancer Look Like?



How long can you have melanoma before noticing?

How long can you have melanoma and not know it? It depends on the type of melanoma. For example, nodular melanoma grows rapidly over a matter of weeks, while a radial melanoma can slowly spread over the span of a decade. Like a cavity, a melanoma may grow for years before producing any significant symptoms.
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How can you tell if a spot is melanoma?

What are the signs and symptoms of melanoma?
  1. Changing mole.
  2. Spot that looks like a new mole, freckle, or age spot, but it looks different from the others on your skin.
  3. Spot that has a jagged border, more than one color, and is growing.
  4. Dome-shaped growth that feels firm and may look like a sore, which may bleed.
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What are at least two warning signs of melanoma skin cancers?

Talk to your doctor if you notice changes in your skin such as a new growth, a sore that doesn't heal, a change in an old growth, or any of the A-B-C-D-Es of melanoma. A change in your skin is the most common sign of skin cancer. This could be a new growth, a sore that doesn't heal, or a change in a mole.
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What can be mistaken for melanoma?

Nevus (mole)

Moles, also known as nevi, are one of the most common growths that people find on their skin. Growing mostly in early adulthood these are some of the growths most commonly mistaken for melanomas.
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How does your body feel when you have melanoma?

Itchiness, tenderness or pain. Changes in texture, or scales, oozing or bleeding from an existing mole. Blurry vision or partial loss of sight, or dark spots in the iris.
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What does a Stage 1 melanoma look like?

Stage I melanoma is no more than 1.0 millimeter thick (about the size of a sharpened pencil point), with or without an ulceration (broken skin). There is no evidence that Stage I melanoma has spread to the lymph tissues, lymph nodes, or body organs.
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What are four early signs of melanoma?

The "ABCDE" rule is helpful in remembering the warning signs of melanoma:
  • Asymmetry. The shape of one-half of the mole does not match the other.
  • Border. The edges are ragged, notched, uneven, or blurred.
  • Color. Shades of black, brown, and tan may be present. ...
  • Diameter. ...
  • Evolving.
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Can you tell what stage a melanoma is from looking at it?

To determine the stage of a melanoma, the lesion and some surrounding healthy tissue need to be surgically removed and analyzed using a microscope. Doctors use the melanoma's thickness, measured in millimeters (mm), and the other characteristics described in Diagnosis to help determine the disease's stage.
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When is melanoma most likely to occur?

The risk of melanoma increases as people age. The average age of people when it is diagnosed is 65. But melanoma is not uncommon even among those younger than 30. In fact, it's one of the most common cancers in young adults (especially young women).
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Is melanoma usually flat or raised?

It usually appears as a round, raised lump on the surface of the skin that is pink, red, brown or black and feels firm to touch. It may develop a crusty surface that bleeds easily.
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Can you have melanoma for a year and not know?

“You could have melanoma for a long time before you realize it, because some types are not so obvious. Some aggressive forms, like nodular melanoma, grow fast, are visible and can hurt or bleed.” While certain groups may be at a higher risk for melanoma, anyone can get the disease.
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Can a doctor tell if you have a melanoma just by looking at it?

Skin cancer diagnosis always requires a skin biopsy

This can easily be done during your appointment. The procedure that your dermatologist uses to remove the spot is called a skin biopsy. Having a skin biopsy is essential. It's the only way to know whether you have skin cancer.
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Can you have melanoma and feel fine?

One common misconception about cancer is that you'd know if you had it. Unfortunately, melanoma can be a silent killer. You can feel fine when you have it. You might not see any visible skin lesions, even as it spreads to your lymph nodes and body systems.
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When should you suspect melanoma?

The most important warning sign of melanoma is a new spot on the skin or a spot that is changing in size, shape, or color. Another important sign is a spot that looks different from all of the other spots on your skin (known as the ugly duckling sign).
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What part of the body is most common for melanoma?

Melanoma most often appears on the face or the trunk of affected men. In women, this type of cancer most often develops on the lower legs. In both men and women, melanoma can occur on skin that hasn't been exposed to the sun.
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How long does it take for melanoma to spread?

The lesion can grow slowly for 5 to 15 years in the in situ form before becoming invasive. The exact percentage of lentigo maligna lesions that progress to invasive lentigo maligna melanoma is unknown but is estimated to be less than 30% to 50%.
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When is melanoma too late?

What are the signs of late-stage skin cancer? Melanoma is considered stage 4 when it has metastasized to lymph nodes in a part of the body far from the original tumor or if it has metastasized to internal organs like the lungs, liver, brain, bone or gastrointestinal tract.
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Can you feel if melanoma has spread?

If your melanoma has spread to other areas, you may have: Hardened lumps under your skin. Swollen or painful lymph nodes. Trouble breathing, or a cough that doesn't go away.
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Would you feel sick if you had melanoma?

If the melanoma spreads to the digestive system, it can cause: pain in the tummy (abdomen) a change in bowel function (constipation or diarrhoea) sickness (vomiting)
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Do you feel ill with malignant melanoma?

General symptoms

hard or swollen lymph nodes. hard lump on your skin. unexplained pain. feeling very tired or unwell.
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