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Anemic moles
Anemic moles
Anemia nevus is a kind of congenital localized hypopigmentation spot, which is generally unilaterally distributed or confined to a certain part after birth or shortly after birth. Afterwards, it rarely continues to expand, the shape does not change, and the color is hypopigmentation rather than depigmentation. After rubbing or heating, there is no local redness, but the surrounding normal skin turns red. After compression with a glass slide, the edges of the skin lesions are more blurred. According to the above characteristics, it can be distinguished from vitiligo.
Features of anemic moles
It is a localized light spot on the skin, where the blood vessel tissue development is defective, but it is not a structure but a function abnormality. Patients with neurofibromas suffer from this disease more frequently than normal people.
Causes of anemic moles
This disease is caused by increased sensitivity of blood vessels to catecholamines, and local blood vessels are always in a contracted state, causing local skin ischemia and white patches. Anemia, oral iron treatment is also very necessary. Donkey-hide gelatin is a traditional blood supplement formula in my country, and ferrous lactate is a good divalent iron supplement preparation. Many blood supplement products on the market use them as a single formula. It uses ferrous lactate, donkey-hide gelatin and zinc protein as its functional ingredients. It combines iron supplementation, blood production and nutrition in one. The Hengjian Iron Edge Tablet can better prevent and improve anemia and enhance human immunity.
Clinical symptoms
Occurs after birth or childhood, or late, and the incidence of both sexes is equal. It usually occurs on the face, neck, or buttocks. Occurring unilaterally, the skin lesions are pale white patches with unclear boundaries and very irregular shapes, and the skin texture remains unchanged. It is a single or multiple round, oval or irregularly shaped light spots. Pressing it with a glass slide makes it difficult to distinguish it from the surrounding white skin; or rubbing the part with the palm of the hand, the surrounding skin becomes red, but the light spots are not red. The disease can occur in any part, but it is more common in the trunk. Never fade away for life. Anemic moles are heavy and obvious in winter, and light and unobvious in summer.
Pathological changes
The tissue changes are not abnormal, but the local blood vessels are more responsive to catecholamines, and the blood vessels are in a state of contraction, which is a functional abnormality.
Prevention and treatment of anemic moles
For anemic moles, drugs that dilate blood vessels can be used externally, such as 5% capsaicin ointment.
Differential diagnosis
Anemic moles are similar to vitiligo and non-pigmented moles. Their respective characteristics are as follows:
Vitiligo is distinct from normal skin tissues, and the surrounding skin color is obviously aggravated. When a clean glass slide is pressed down vertically, the boundary of the white spot will be more clear.
Anemic moles are just the opposite of vitiligo. Anemic moles are only limited hypopigmentation, not depigmentation. Therefore, there is no obvious boundary between the depressed area and normal skin. The area of anemic moles has obvious "branched texture", and there is no tendency for anemic moles to expand. , Rubbing the skin lesions hard, there is no local redness, but the surrounding normal skin is red. When pressing down with a glass slide, the anemic mole will disappear.
Non-pigmented mole is equivalent to the abnormal development of melanin in a certain area, which is formed congenitally, but it can not be manifested immediately after birth. This is the reason why it is easy to be confused with vitiligo. Vitiligo grows more casually, and the area varies with the seasons, and it can be reduced after regular treatment. Once a non-pigmented mole is formed, its size is basically fixed, and its growth rate and growth rate are directly proportional to the body's development.
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