Definitions for actinic keratosis
ac·tinic ker·ato·sis

Princeton's WordNetRate this definition:0.0 / 0 votes

1. actinic keratosisnoun

   an overgrowth of skin layers resulting from extended exposure to the sun

WiktionaryRate this definition:0.0 / 0 votes

1. actinic keratosisnoun

   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.

WikipediaRate this definition:0.0 / 0 votes

1. Actinic keratosis

   Actinic keratosis (AK), sometimes called solar keratosis or senile keratosis, is a pre-cancerous area of thick, scaly, or crusty skin. Actinic keratosis is a disorder (-osis) of epidermal keratinocytes that is induced by ultraviolet (UV) light exposure (actin-). These growths are more common in fair-skinned people and those who are frequently in the sun. They are believed to form when skin gets damaged by UV radiation from the sun or indoor tanning beds, usually over the course of decades. Given their pre-cancerous nature, if left untreated, they may turn into a type of skin cancer called squamous cell carcinoma. Untreated lesions have up to a 20% risk of progression to squamous cell carcinoma, so treatment by a dermatologist is recommended. Actinic keratoses characteristically appear as thick, scaly, or crusty areas that often feel dry or rough. Size commonly ranges between 2 and 6 millimeters, but they can grow to be several centimeters in diameter. Notably, AKs are often felt before they are seen, and the texture is sometimes compared to sandpaper. They may be dark, light, tan, pink, red, a combination of all these, or have the same color as the surrounding skin. Given the causal relationship between sun exposure and AK growth, they often appear on a background of sun-damaged skin and in areas that are commonly sun-exposed, such as the face, ears, neck, scalp, chest, backs of hands, forearms, or lips. Because sun exposure is rarely limited to a small area, most people who have an AK have more than one.If clinical examination findings are not typical of AK and the possibility of in situ or invasive squamous cell carcinoma (SCC) cannot be excluded based on clinical examination alone, a biopsy or excision can be considered for definitive diagnosis by histologic examination of the lesional tissue. Multiple treatment options for AK are available. Photodynamic therapy (PDT) is one option the treatment of numerous AK lesions in a region of the skin, termed field cancerization. It involves the application of a photosensitizer to the skin followed by illumination with a strong light source. Topical creams, such as 5-fluorouracil or imiquimod, may require daily application to affected skin areas over a typical time course of weeks. Cryotherapy is frequently used for few and well-defined lesions, but undesired skin lightening, or hypopigmentation, may occur at the treatment site. By following up with a dermatologist, AKs can be treated before they progress to skin cancer. If cancer does develop from an AK lesion, it can be caught early with close monitoring, at a time when treatment is likely to have a high cure rate.

ChatGPTRate this definition:0.0 / 0 votes

1. actinic keratosis

   Actinic keratosis, also known as solar keratosis, is a precancerous skin condition characterized by rough, scaly patches on the skin that are caused by damage from the sun's ultraviolet (UV) rays. It most commonly affects older adults or those with a weak immune system, and it can lead to squamous cell skin cancer if left untreated. It usually appears on sun-exposed areas such as the face, lips, ears, back of hands, forearms, scalp, and neck.

WikidataRate this definition:0.0 / 0 votes

1. Actinic keratosis

   Actinic keratosis is a premalignant condition of thick, scaly, or crusty patches of skin. It is more common in fair-skinned people and it is associated with those who are frequently exposed to the sun, as it is usually accompanied by solar damage. They are considered as potentially pre-cancerous, since some of them progress to squamous cell carcinoma, so treatment is recommended. Untreated lesions have up to 20 % risk of progression to squamous cell carcinoma. Progressive development of these lesions occurs when skin is exposed to the sun constantly and thick, scaly, or crusty areas appear. The scaly or crusty portion is dry and rough. The lesions start out as flat scaly areas and later grow into a tough, wart-like area. An actinic keratosis site commonly ranges between 2 and 6 millimeters in size, and may be dark or light, tan, pink, red, a combination of all these, or have the same pigment as the surrounding skin. The lesion may appear on any sun-exposed area, such as the face, ears, neck, scalp, chest, backs of hands, forearms, or lips.

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1. • Keratosis

How to pronounce actinic keratosis?

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Numerology

1. Chaldean Numerology

   The numerical value of actinic keratosis in Chaldean Numerology is: 1

2. Pythagorean Numerology

   The numerical value of actinic keratosis in Pythagorean Numerology is: 5

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=actinic keratosis
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Actinic_Keratosis
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Actinic_Keratosis
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=actinic keratosis