Is Hori’s nevus hereditary?
Apr 19, 2022
Source: Cainiu Health
Dr. Liu Wan
Introduction
Hori’s nevus is generally not hereditary. It forms due to a progressive increase in the number of melanocytes in the skin. Its development results from both congenital and acquired factors: during embryonic development, the migration of melanocytes from the neural crest to the epidermis is impeded, causing melanocytes to become trapped in the dermis—thereby forming Hori’s nevus.
Hori’s nevus is generally not hereditary. It develops due to a progressive increase in the number of melanocytes in the skin, with contributing factors categorized as either congenital or acquired, as detailed below:
1. Congenital factors: During embryonic development, migration of melanocytes from the neural crest to the epidermis is impeded, causing melanocytes to become trapped in the dermis—resulting in Hori’s nevus.
2. Acquired factors: Prolonged use of cosmetics containing heavy metals such as lead or mercury may induce necrosis of cutaneous fibrous tissue, leading to pigment deposition in the dermis and subsequent development of Hori’s nevus.
Hori’s nevus can be effectively treated and removed via laser surgery. Laser therapy utilizes the principle of selective photothermolysis, targeting pigment granules deposited in the dermis to achieve clearance of the lesion. In daily life, ensure adequate rest and avoid chronic sleep deprivation; aim for sufficient, high-quality sleep. Maintain a light, easily digestible diet, minimizing intake of greasy or spicy/irritating foods. Consume ample fresh fruits and vegetables rich in vitamins—for example, apples and pineapples.
