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A birthmark is a congenital, benign irregularity on the skin which is present at birth or appears shortly after birth—usually in the first month. Birthmarks can occur anywhere on the skin. [ 1 ] They are caused by overgrowth of blood vessels , melanocytes , smooth muscle , fat , fibroblasts , or keratinocytes .
A Mongolian spot, also known as slate grey nevus or congenital dermal melanocytosis, is a benign, flat, congenital birthmark with wavy borders and an irregular shape. In 1883, it was described and named after Mongolians by Erwin Bälz, a German anthropologist based in Japan, who erroneously believed it to be most prevalent among his Mongolian patients.
A vascular anomaly is any of a range of lesions from a simple birthmark to a large tumor that may be disfiguring. They are caused by a disorder of the vascular system. [1] A vascular anomaly is a localized defect in blood vessels or lymph vessels.
Birthmarks are marks on the skin noticeable at birth that are usually completely harmless.
An infantile hemangioma (IH), sometimes called a strawberry mark due to appearance, is a type of benign vascular tumor or anomaly that affects babies. [1] [2] Other names include capillary hemangioma, [6] "strawberry hemangioma", [7]: 593 strawberry birthmark [8] and strawberry nevus.
What causes warts on hands? Common warts, known as verruca vulgaris, often appear on the hands, says Dr. Ronda Farah , MD, FAAD, a dermatologist with M Health Fairview and the University of ...
After a few weeks, the top layer of skin may fall off and inflammation appear around the bases of the vesicles, and there may be peeling, rings of scale, or lichenification. After three to four weeks the vesicles will disappear. While they are present there is a risk of secondary bacterial infection.
Depending on the location of the birthmark and other associated symptoms, a physician may choose to order a measurement of intraocular pressure or X-ray of the skull. An MRI of the brain may be performed (under anesthesia) on infants who have a port-wine stain in the head area in order to check for signs of Sturge–Weber syndrome. [2]