What are the bases for the diagnosis of malignant melanoma?

Malignant melanoma is a skin cancer that is easy to metastasize and has a high mortality rate. Only by discovering malignant melanoma at an early stage and receiving early treatment can a better prognosis be achieved. So, what are the methods for diagnosing malignant melanoma? Today, we invite experts to tell us in detail about the diagnosis of malignant melanoma .

The diagnosis of malignant melanoma is very simple. If people with pigmentary diseases find the following five changes, they should seek a specialist for diagnosis of malignant melanoma as soon as possible:

1. The border around the rash is unclear, or one side is clear and the other side is blurry, giving people a vague feeling.

2. The rash is asymmetrical. One side of the rash is relatively stable, while the other side expands toward the periphery and becomes irregular and rough on the surface.

3. The rash pigment deepens or decreases. It may be light brown, dark brown, black, dark red, red, purple, gray-green, cyan, gray-blue, or even disappear.

4. The rash grows rapidly in a short period of time. It doubles in size within 1 to 2 months. If the diameter of the congenital nevus rash is greater than 6 mm, especially if it occurs on the palms and soles of the feet, if the diameter of the nevus exceeds 15 mm, it indicates the possibility of malignancy.

5. Whether the rash is raised. The rash may not be raised at first, but will be slightly raised later and gradually form nodules. Or there may be erosion, scabs, pus, or water on the surface, especially blood.

Some subjective symptoms are also danger signals, such as itching, pain, burning sensation, redness and swelling, or the appearance of new small black spots (satellite lesions) within 2 cm around the mole. Especially moles growing on friction sites such as the palms, soles, fingernails (toes), waist, shoulders, etc. should not be ignored.

The above is the introduction of "Diagnosis of Malignant Melanoma", which is for reference only. There are many ways to diagnose malignant melanoma. The patient's symptoms are one of the diagnostic bases, and we should pay attention to them. If you have other questions about the diagnosis of malignant melanoma, please consult our online experts for more information.

For more information, please visit the melanoma special topic at http://www..com.cn/waike/hssl/ or consult an expert for free. The expert will then give a detailed answer based on the patient's specific situation.