Lexic.us

Definition of Actinic keratosis

1. Noun. An overgrowth of skin layers resulting from extended exposure to the sun.

Definition of Actinic keratosis

1. Noun. (medicine) A lesion on the skin, typically on the upper portion of the head, characterized by discolored, thickened or scaly growths of keratin, caused by exposure to the sun; common in fair-complected people of a certain age. They are precancerous. ¹

¹ Source: wiktionary.com

Medical Definition of Actinic keratosis

1. A skin lesion that is abnormally sensitive to the effects of ultraviolet light (sunlight). Thought to be a precancerous skin lesion that is more common in the fair-skinned or elderly individual. Approximately 20% of these skin lesions will develop into squamous cell carcinoma. Prevention includes the use of sun screen agents and the avoidance of drugs (for example tetracyclines) known to cause photosensitivity reactions. Usually a discreet slightly raised, red or pink lesion located on a sun exposed surface. Texture may appear as rough, gritty or scaly. Growths may be biopsied to look for cancer or removed via cryotherapy or electrical cautery. Some topical agents may be used to promote peeling. (27 Sep 1997)

Actinic Keratosis Pictures

Click the following link to bring up a new window with an automated collection of images related to the term: Actinic Keratosis Images

Lexicographical Neighbors of Actinic Keratosis

Literary usage of Actinic keratosis

Below you will find example usage of this term as found in modern and/or classical literature:

1. Fluoride in Drinking Water: A Scientific Review of EPA's Standards by National Research Council (2006)
"(2001a) reported less than 3% systemic fluorouracil absorption in patients treated with 0.5% or 5% cream for actinic keratosis. A group of widely used ..."

2. Approved Drug Products with Therapeutic Evaluationsby DIANE Publishing Company by DIANE Publishing Company (1995)
"... TRIPHASIC REGIMEN U-67 METHOD OF INDUCING ANESTHESIA IN A WARM BLOODED ANIMAL U-68 TREATMENT OF actinic keratosis U-69 TREATMENT OF PNEUMOCYSTIS CARINII ..."

Other Resources Relating to: Actinic keratosis