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They can be the result of pimples, insect bites, scratching, burns, or other skin injury. Keloid scars can develop after surgery. They are more common in some sites, such as the central chest (from a sternotomy), the back and shoulders (usually resulting from acne), and the ear lobes (from ear piercings). They can also occur on body piercings.
Cutaneous squamous-cell carcinoma (cSCC), also known as squamous-cell carcinoma of the skin or squamous-cell skin cancer, is one of the three principal types of skin cancer, alongside basal-cell carcinoma and melanoma. [10] cSCC typically presents as a hard lump with a scaly surface, though it may also present as an ulcer. [1]
The hard fibroma (fibroma durum) consists of many fibres and few cells, e.g. in skin it is called dermatofibroma (fibroma simplex or nodulus cutaneous). [2] A special form is the keloid , which derives from hyperplastic growth of scars .
Squamous-cell: hard lump with a scaly top [2] Melanoma: mole that has changed in size, shape, color, or has irregular edges [3] Types: Basal-cell skin cancer (BCC), squamous-cell skin cancer (SCC), melanoma [1] Causes: Ultraviolet radiation from the Sun or tanning beds [4] Risk factors: Light skin, poor immune function [1] [5] Diagnostic method ...
These ingredients create a physical barrier between your skin and the sun and protects against longer wavelengths of light, like the long-wave UVA light and visible light that tend to make melasma ...
The skin weighs an average of four kilograms, covers an area of two square metres, and is made of three distinct layers: the epidermis, dermis, and subcutaneous tissue. [1] The two main types of human skin are: glabrous skin, the hairless skin on the palms and soles (also referred to as the "palmoplantar" surfaces), and hair-bearing skin. [3]
Two months ago, "Good Morning America" anchor and ABC 7's Eyewitness News meteorologist Sam Champion spotted a red, hard lump underneath his right eye and "knew" it was skin cancer — a self ...
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