Description: A junctional nevus is a type of mole that forms at the junction of the epidermis and dermis, the two main layers of the skin. This type of skin lesion is characterized by the accumulation of melanocytes, which are the cells responsible for producing melanin, the pigment that gives color to the skin. Junctional nevi typically appear as flat spots that are brown or black in color and can vary in size. They often occur in sun-exposed areas, although they can also appear on other parts of the body. Unlike other types of nevi, such as compound nevi, junctional nevi do not have significant elevation above the skin’s surface. While they are generally benign, it is important to monitor any changes in their appearance, as some may evolve into more dangerous forms, such as melanoma. Early identification and proper follow-up are crucial for dermatological health, making knowledge about junctional nevi relevant for both dermatologists and patients. In summary, junctional nevi are a common manifestation of skin pigmentation, and their study is essential in the field of dermatology for the prevention and early detection of more serious skin diseases.
