a horny thickening of the skin
a scaly, crusted, wart-like growth.
A growth on the skin that is the result of overproduction of the protein keratin.
A disorder of the skin, characterised by overgrowth of its outer surface. It arises on exposure to sunlight and takes the form of dry scales with redness of the surrounding skin.
pilaris: is a very common genetic follicular disease that is manifested by the appearance of rough bumps on the skin. It is also referred to as "chicken skin". It appears mostly on the back and on the outer sides of the arms. It is more common in women than in men.
A localized horny overgrowth of the upper layer of skin such as a callus or wart. Among the common forms of keratosis are actinic keratosis and senile keratosis. See the entire definition of Keratosis
excessive growth of horny tissue of the skin; a skin condition marked by an overgrowth of layers of horny skin.
A skin lesion that is abnormally sensitive to the effects of ultraviolet light (sunlight). Usually a discreet slightly raised, red or pink lesion located on a sun-exposed surface. Texture may appear as rough, gritty or scaly.
A condition whereby keratin, a hard tissue typically found in fingernails and toenails, accumulates on the vocal folds. Keratosis may be pre-cancerous at worst. At best, it causes a very hoarse voice.