A wheal is an evanescent rounded or flat-topped elevation in the skin that is edematous, and often erythematous. They may vary in size from a few mm. to a few cm. The shape may change and these lesions are usually pruritic (itchy).
A skin ulcer is an open wound on the skin. It could be caused by a health problem such as infection, by a pressure sore, or by vein problems (venous skin ulcers).
Striae also known as stretch marks are linear, atrophic, pink, purple, or white lesions of the skin. They are caused by tearing of the dermis, which over time may diminish, but will not disappear completely.Stretch marks are often the result of the rapid stretching of the skin associated with rapid ...
The skin is the layer of tissue that covers the body; it is the largest organ of the body, with a total area of about 20 square feet.It's role is to protect against microbes and external elements(cold, heat, light, humidity, etc.), helps regulate body temperature, and also offers the sense of ...
Sclerosis refers to a circumscribed, diffuse hardening or induration in the skin. It is usually produced by induration of the dermis and/or subcutaneous tissue. Palpation is often necessary in diagnosing sclerosis.
A pustule is a circumscribed elevation of the skin that contains a purulent exudate that may be white, yellow, or greenish-yellow in color.
A plaque is an elevated area of skin 2 cm. or more in diameter. It may be formed by a coalescence of papules or nodules. The surface area is greater than its height. It is a plate-like lesion.
A papule is a solid, elevated lesion with no visible fluid which may be up to 0.5cm. in diameter. The elevation may be accounted for by metabolic deposits, infiltrates, or hyperplasia of cellular elements, etc.
