A horny, keratinous growth, particularly on the skin. Also known as a wart or callus.
A small skin thickening, swelling, or lump that may be a precursor to cancer.
Keratoses, skin condition characterized by an overgrowth of horny skin layers.
A skin growth caused by the overproduction of keratin, a protein found in skin, hair, and nails. Normally, keratin acts as a protective barrier against harmful environmental influences. An example of a benign (not cancerous) keratosis is seborrheic keratosis, a skin tumor that commonly occurs after middle age. An actinic keratosis is a precancerous growth that occurs in sun-exposed areas of the body. Such growths appear as a result of long-term sun exposure and, if left untreated, can progress to skin cancer.
Any horny growth of the skin. There are two common types. Actinic keratosis is a well-defined red or skin-colored warty growth, usually occurring in middle or old age, caused by overexposure to the sun. Seborrheic keratosis (or warts) are yellow or brown oval spots with clearly marked perimeters and raised surfaces, developing in middle age.
Also known as actinic keratosis; a rough, scaly area on exposed skin caused by chronic solar damage from exposure to sun. The face and backs of the hands are most commonly affected. cryotherapy is effective, but prevention by appropriate clothing and sun-blocking creams is a better strategy.
Growth of the horny layer of the skin (also known as a callus, a callosity, or a keratoma).
A skin anomaly resulting from an excessive production of the robust fibrous protein called keratin. Keratoses are primarily observed in older individuals.
Seborrheic keratoses are benign growths that predominantly develop on the trunk. They exhibit a variety of appearances, from flat, dark-brown patches to small, wart-like projections. Treatment is unnecessary unless the growths are aesthetically displeasing.
Solar keratoses are diminutive, wart-like growths that manifest as reddish or flesh-colored on sun-exposed areas of the body due to prolonged sun exposure. In rare instances, they can progress into skin cancer, typically as squamous cell carcinoma.
Seborrheic keratoses can be eliminated through curettage, which involves scraping them away. On the other hand, surgical intervention is necessary for solar keratoses that have transformed into cancerous growths.
Any skin ailment marked by the excessive growth of the outermost skin layer, or any condition of a lining membrane distinguished by the process of cornification.