Nevus anemic is a rare congenital disorder characterized by pale patches of skin that cannot turn red, caused by irregularities in the circulatory system. It is difficult to diagnose and has no symptoms, but makeup can be used to cover the patches. It is associated with neurofibromatosis and melanoma.
Nevus anemic is a congenital disorder characterized by macules, or flat colored patches of skin, that differ from the rest of the skin by their pale pigmentation. They also cannot turn red even when heat, cold, or force is experienced in the affected area. Nevus anemicus is an example of a cutaneous condition, a term to classify conditions affecting or related to the skin. It is one of the rarest, however.
The “nevus” part of the condition’s name refers to the composition of the lesions, which contain nevus cells and are a variant of melanocytes, or melanin-producing cells that determine skin color. They are usually a sort of bordered circular shape and can appear alone or in patches. Although lesions can occur anywhere on the body, the most common location is the chest.
Anemic nevus is more severe in people who have neurofibromatosis, which involves the development of potentially dangerous tumors from nerve tissue. It is also associated with abnormal capillary formations such as nevus flammeus or port-wine stain; or phakomatosis pigmentovascular, which is the combination of wine coloration with melanocytic nevi. At worst, it can mean melanoma, which is the development of malignant tumors from melanocytes.
The cause of the anemic nevus is attributed to a certain irregularity in the circular system, which triggers an increased sensitivity to the “fight or flight” hormones known as catecholamines. This hypersensitivity leads to a narrowing of some blood vessels, thus producing the pale patches. This is a congenital disease that develops at birth or during the first months or years of a person’s life. Nevus anemic is more common in females than in males and has no symptoms.
The asymptomatic nature of the anemic nevus makes it extremely difficult to diagnose or distinguish itself from similar diseases such as vitiligo. Using diascopy, however, in which a finger or glass slide is pressed to the skin to determine changes in color, nevus anemic can be diagnosed due to its inability to visualize such changes. Also, the disorder does not show any loss of melanin.
Doctors usually don’t prescribe treatment for anemic nevus. Also, there are no drugs or therapies for the disease. Instead, patients who are concerned about their appearance are encouraged to use makeup to cover the macules. The prognosis is generally excellent.
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