MSN: Brown Spots in Your Cat’s Mouth? The Surprising Truth That’s Usually Harmless “Not every spot is a cause for alarm.” That’s the reassuring message veterinarians want cat owners to remember when they discover unexpected changes in their pet’s mouth. For one orange tabby’s owner, ...

Context Explanation

Brown Spots in Your Cat’s Mouth? The Surprising Truth That’s Usually Harmless Scientists have mapped the genetics of cancer in cats for the first time at scale, uncovering major overlaps with human cancers. Key mutations—like those linked to breast cancer—appear in both species ... Melanoma is a kind of skin cancer that starts in the melanocytes.

Insight Material

Melanocytes are cells that make the pigment that gives skin its color. The pigment is called melanin. Melanoma typically starts on skin that's often exposed to the sun. This includes the skin on the arms, back, face and legs. Melanoma also can form in the eyes.

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Rarely, it can happen inside the body, such as in the nose or throat. Melanoma stages use the numbers 0 through 4. At stage 0 and stage 1, a melanoma is thin and small. Treatment is likely to be successful. As the melanoma grows deeper into the skin, the stages get higher. Treatment becomes more challenging.

By stage 4, the cancer has spread beyond the skin to other organs, such as the lungs or liver. Melanoma dentro del cuerpo. El melanoma mucoso se presenta en las membranas mucosas. Este tejido recubre la nariz, la boca, el esófago, el ano, las vías urinarias y la vagina.