I. Re-awareness of pigmented nevus.
Pigmented nevus, with no gender difference in onset, has the largest number at the age of 21-30 and starts to fade on its own at the age of 70-90, is a benign lesion and does not need any treatment; if it affects aesthetics, it can be removed surgically and sent for pathological examination after surgery to check whether there is malignant change.
What kind of pigmented nevi need timely treatment?
1. Suddenly fast growth, rapid expansion and irregular shape.
2. Deepening and brightening of color, uneven distribution of pigment, pigment loss, local redness and inflammation.
3.Surface changes from smooth to rough.
4.Hairy nevus starts to lose hair.
5.There is oozing or bleeding and ulceration at the nevus.
6.There are enlarged lymph nodes nearby.
7.Small hard lumps are formed in the mole or satellite moles appear around it.
8.Itching and tingling appear in moles without sensation.
9.The surface elevation of the mole disappears.
What kind of moles need preventive excision?
1.Moles that grow on the palm and finger area and the area prone to friction.
2.Moles that have been treated with medicine, freezing, laser, etc. and then recur.
3.Halo moles (moles with white halo around them).
Why is laser freezing treatment not recommended for pigmented moles?
Most pigmented nevi accumulate in the dermis and treatment must break through the dermal papillae layer, so open traumatic processes such as laser and freezing can easily form scarring with poor results.
2. In laser and freezing treatment, the color of pigmented nevus will become lighter and lighter as the nest of nevus cells is destroyed, but when the color is not visible to the naked eye, it does not mean that the nest of nevus cells disappears, therefore, laser and freezing treatment is often incomplete and pigmented nevus is prone to recurrence.
3. If repeated laser freezing treatment is given to recurrent moles, and the nest of nevus cells is not completely removed, such stimulation will greatly increase the chance of pigmented nevus malignant transformation.
Why should surgery be preferred to remove pigmented moles?
1.Surgery can cut out pigmented moles.
2.Fine cosmetic suture is good for wound healing to reduce scar formation.
3. The cut specimen can be sent to pathological examination to prevent misdiagnosis and leakage, and those with malignant tendency should be further treated or observed for follow-up.