Impetigo is a general and contagious skin infection. Bacteria like Staphylococcus aureus or Streptococcus pyogenes infect the outer layers of skin, called the epidermis. The arms, face, and legs are most often affected.
A mole is a type of skin lesion that could cover just about any type of skin abnormality. It could refer to skin tags, warts, freckles, or simple brown or black discolorations on the skin
Lentigines are not typically a cause of medical concern, so they don’t need to be treated. However, some may choose to lighten or remove lentigines for aesthetic reasons.
Ink spot lentigo, also known as reticulated black solar lentigo, is a variant of solar lentigo characterized by very dark color and a beaded or wiry, markedly irregular outline. The condition was first described by Bolognia in 1992.
Solar lentigo is a harmless patch of darkened skin. It results from exposure to ultraviolet (UV) radiation, which causes local proliferation of melanocytes and accumulation of melanin within the skin cells (keratinocytes). Solar lentigos or lentigines are very common, especially in people over the age of 40 years. Sometimes they are also known as an “old age spot” or “senile freckle”.
Acquired moles are moles that appear during childhood and adulthood. Most of these moles are benign and pose no risk, although sometimes they can turn into cancerous moles with age. This type of mole is the most common, and repeated sun exposure usually causes it.
ATYPICAL MOLES are unusual-looking benign (noncancerous) moles, also known as dysplastic nevi (the plural of “nevus,” or mole). Atypical moles may resemble melanoma, and people who have them are at increased risk of developing melanoma in a mole or elsewhere on the body.
Freckles are small brown spots on your skin, often in areas that get sun exposure. In most cases, freckles are harmless. They form as a result of overproduction of melanin, which is responsible for skin and hair color (pigmentation).
A halo nevus is a mole surrounded by a white ring or halo. These moles are almost always benign, meaning they aren’t cancerous. Halo nevi (the plural of nevus) are sometimes called Sutton nevi or leukoderma acquisitum centrifugum. They’re fairly common in both children and young adult
An intradermal nevus (also called an intradermal melanocytic nevus) is simply a classic mole or birthmark. It typically appears as an elevated, dome-shaped bump on the surface of the skin.