Question: Can a benign mole turn malignant?

A benign mole can sometimes develop into skin cancer. Skin cancer arising from a benign mole is malignant melanoma, which is a very dangerous type of skin cancer that can be fatal if not treated early.

Can a benign mole change?

Changes in benign moles

Environmental factors such as exposure to sunlight, and hormonal changes such as going through puberty or pregnancy can cause moles to darken or develop. Therefore, the appearance of moles can change over time. They can change in number and appearance and can also fade away.

Can benign skin tumors become malignant?

Benign skin tumors. Most skin tumors are benign (not cancerous) and rarely if ever turn into cancers. There are many kinds of benign skin tumors, including: Most types of moles (see Melanoma Skin Cancer for more about moles)

What are signs that a previous benign mole has become a 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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How quickly can moles turn cancerous?

Melanoma can grow very quickly. It can become life-threatening in as little as 6 weeks and, if untreated, it can spread to other parts of the body.

How do you tell if a mole is benign or malignant?

Distinguishing benign moles from melanoma

  1. Asymmetry: the sides of the mole or growth don’t match.
  2. Border: the edges are ragged, notched, or blurred.
  3. Color: the color within the mole or growth varies.
  4. Diameter: the mole or growth is larger than 6 millimeters (size of a pencil eraser).

Can benign melanoma become malignant?

Why is it important to know about benign moles? A benign mole can sometimes develop into skin cancer. Skin cancer arising from a benign mole is malignant melanoma, which is a very dangerous type of skin cancer that can be fatal if not treated early.

Does melanoma start from a mole?

Melanoma doesn’t always begin as a mole. It can also occur on otherwise normal-appearing skin.

What does 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.

Can you have melanoma for years and not know?

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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What does Stage 1 melanoma mean?

In Stage I melanoma, the cancer cells are in both the first and second layers of the skin—the epidermis and the dermis. A melanoma tumor is considered Stage I if it is up to 2 mm thick, and it may or may not have ulceration. There is no evidence the cancer has spread to lymph nodes or distant sites (metastasis).

What percentage of biopsied moles are cancerous?

Lab testing showed that more than 90 percent of biopsied moles were completely removed by using the single procedure, with 11 (7 percent) diagnosed as melanoma, one of the most aggressive forms of skin cancer.

Does melanoma show up in blood work?

Blood tests. Blood tests aren’t used to diagnose melanoma, but some tests may be done before or during treatment, especially for more advanced melanomas. Doctors often test blood for levels of a substance called lactate dehydrogenase (LDH) before treatment.