How to do pathological section of mole?

Moles are a common phenomenon. Many patients suffer from them because of melanin deposition. No abnormalities will occur within a certain period of time, so this type of mole is called a benign mole and will not cause harm to the body. If some adverse phenomena such as itching and skin breakage occur during the observation period, it is very likely to become malignant, and pathological section analysis must be done in time. The doctor will determine the final condition based on the analysis results.

1. Precursors of mole cancer

There are many types of moles, and it is generally recognized that areas that are often subjected to wear and tear, chronic irritation or trauma are more likely to undergo malignant changes. Such as palms, soles of feet, scalp, lips, cheeks, neck and other parts. In addition, pigmented nevi on the red lips, glans penis, labia and other parts are generally believed to have a tendency to become malignant, and pigmented nevi under the nails are also more likely to become malignant. Inappropriate and incomplete treatment, such as physical and chemical drug cauterization treatment, is also considered to be one of the inducing factors. However, this induction of malignancy is believed to be based on the pathological type of the original lesion.

If a pigmented nevus shows any of the following six conditions, it is a sign of impending or already malignant transformation and should be treated as soon as possible!

1. The surface is damaged, bleeding occurs, and ulcers form.

2. The lesion grows rapidly or the size does not change significantly, but the thickness increases significantly.

3. Hair loss, scab removal or satellite lesions occur.

4. Dark urine.

5. Color changes, color deepening, or especially the appearance of a light blue tint.

6. Unexplained symptoms such as itching, pain, inflammation, etc. occur.

2. What methods can be used to remove moles

1. Chemical etching method

Indications: Moles with lighter color and shallow location.

Method: Generally, a 50% concentration of trinitrocarbonic acid solution or alkaline agents such as sodium hydroxide are applied to the mole.

Advantages: Tricarbonic acid solution is not easy to burn the skin and cause scars; alkaline solution is highly corrosive and may take effect quickly.

Disadvantages: The effect of trinitrocarbonic acid solution is slow, and deeper moles may need to be treated 10 times; the corrosion depth of sodium hydroxide is not easy to control and may cause deep scars.

2. Electric burning method

Indications: Moles with a diameter of 0.3-0.5 cm.

Method: Use the principle of electric high-temperature burning to remove the mole by burning and carbonization.

Advantages: Easy to operate, some beauty salons may be able to do it.

Disadvantages: It is difficult to control the degree of burning and it is easy to leave scars.

3. Freezing method

Indications: Flat moles with a diameter of 0.3-0.5 cm, including freckles, etc.

Method: Use liquid nitrogen to freeze the nevus tissue extremely quickly, causing the cells around the nevus to form blisters and then fall off on their own.

Advantages: The depth of destruction is relatively easy to control, it can usually be cured in one treatment, and it is not easy to cause obvious scars.

Disadvantages: Large and thick moles need to be frozen multiple times to be cured, and special instruments must be used. The doctor's skills are also very important.

4. Laser method

Indications: Most moles, including deep and shallow moles, can be treated.

Method: Currently, shallow moles can be removed with lasers, such as ruby ​​laser, chrome laser or dye laser; if the moles are larger and deeper, carbon dioxide ultra-pulse laser should be used to remove them.

Advantages: Laser mole removal can control the size and depth of the optimal light spot, and is less likely to leave scars or become infected.

Disadvantages: For moles that are too deep, you may still need to treat them in multiple sessions.