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Definition Red birthmarks are colored, blood vessel (vascular) skin markings that develop before or shortly after birth. Alternative Names Strawberry mark; Vascular skin changes; Angioma cavernosum; Capillary hemangioma; Hemangioma simplex Causes, incidence, and risk factors There are two main categories of birthmarks. Red birthmarks are made up of blood vessels close to the skin surface, and are called vascular birthmarks. Pigmented birthmarks are areas in which the color of the birthmark is different from the color of the rest of the skin. Hemangiomas are a common vascular birthmark. Their cause is unknown. The color results from the development of blood vessels at the site. Strawberry hemangiomas (strawberry mark, nevus vascularis, capillary hemangioma, hemangioma simplex) may develop several weeks after birth. Cavernous hemangiomas (angioma cavernosum, cavernoma) are similar to strawberry hemangiomas but they are deeper. Salmon patches (stork bites) are extremely common, appearing on 30-50% ...
Precancerous Skin Conditions Actinic (Solar) Keratosis. Actinic keratosis (also called solar keratosis) is a skin lesion caused by too much sun exposure. There is some increased risk of skin cancer in patients who have these lesions, but the risk of one specific actinic keratosis turning into cancer is low. The increased risk of cancers may be due to the fact that heavy sun exposure has been linked to both actinic keratosis and nonmelanoma skin cancers. Actinic keratosis occur after years of sun exposure. They appear mostly on sun-exposed skin, such as the face, neck, back of the hands and forearms, upper chest, and upper back. Men may develop keratosis along the rim of the ear. Actinic keratosis have the following characteristics: Lesions typically occur on the surface of the skin and have a sandpaper-like feel. In fact, they are sometimes more easily felt than seen. Most lesions are pink and even flesh-colored. Some are red or brown, scaly, and tender. At times, they can resemble melanom...
Did you know the largest internal organ of the body is the liver? But the overall largest organ of the body is the skin. It’s no wonder the skin is involved with so many aspects of diseases: rash, itching, fever, external bleeding, swelling, pallor (turning pale), and cyanosis (turning blue). Doctors look for signs of hundreds of diseases by examining the organ that is most accessible, the skin.
Often the skin is our first line of defense against adverse conditions such as hot and cold temperatures, external trauma (for example falling on hard ground) and harmful rays of the sun. We are protected from a myriad of germs (bacteria, viruses, fungi and parasites) by having a finely woven coat of armor, our skin.
Unfortunately certain substances, after contacting the skin, may cause a break down in protective barrier forces. This may be followed by inflammation and a skin eruption (rash) that signals the development of contact dermatitis (CD) .
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