Benign neoplasms composed almost exclusively of melanocytes. These are so common to be considered a
normal part of the skin, such as cherry angiomata or seborrheic keratoses. They typically form during early
childhood, usually in response to sun exposure. In fact, early use of broad-spectrum sunscreens can effectively reduce their development. Nevi often appear after blistering events, such as sunburns or second-degree thermal burns, suggesting once again their actinic etiology. Incidence of acquired melanocytic nevi
increases in number throughout childhood and early adulthood, peaking during the fourth to fifth decade of
life, with significant reduction in later years. In fact, acquired melanocytic nevi have been said to be absent
at birth and at death, reflecting their slow involution with age.
normal part of the skin, such as cherry angiomata or seborrheic keratoses. They typically form during early
childhood, usually in response to sun exposure. In fact, early use of broad-spectrum sunscreens can effectively reduce their development. Nevi often appear after blistering events, such as sunburns or second-degree thermal burns, suggesting once again their actinic etiology. Incidence of acquired melanocytic nevi
increases in number throughout childhood and early adulthood, peaking during the fourth to fifth decade of
life, with significant reduction in later years. In fact, acquired melanocytic nevi have been said to be absent
at birth and at death, reflecting their slow involution with age.