Keratoacanthoma (KA) is a common low-grade (unlikely to metastasize or invade) skin tumour that is believed to originate from the neck of the hair follicle. Many pathologists consider it to be a form of squamous cell carcinoma (SCC). The pathologist often labels KA as `well-differentiated squamous cell carcinoma, keratoacanthoma variant`, becaus.....
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http://en.wikipedia.org/wiki/Keratoacanthoma
A rapidly growing, dome-shaped skin tumor that usually occurs on sun-exposed areas of the body, especially around the head and neck. Keratoacanthoma occurs more often in males. Although in most patients it goes away on its own, in a few patients it comes back. Rarely, it may spread to other parts of the body.
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http://www.cancer.gov/dictionary?expand=K
A benign, non-neoplastic, usually self-limiting epithelial lesion closely resembling squamous cell carcinoma clinically and histopathologically. It occurs in solitary, multiple, and eruptive forms. The solitary and multiple forms occur on sunlight exposed areas and are identical histologically; they affect primarily white males. The eruptive form u...
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http://www.encyclo.co.uk/local/20973
(ker″ә-to-ak″an-tho´mә) a locally destructive epithelial tumor with a superficial crater containing a keratin plug; it closely resembles squamous cell carcinoma clinically and histologically, but is benign and generally undergoes spontaneous regression. Exposure to sunlight is believed to play a ...
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http://www.encyclo.co.uk/local/21001
Type: Term Pronunciation: ker′ă-tō-ak′an-thō′mă Definitions: 1. A rapidly growing tumor that may be umbilicated, and usually occurs on exposed areas of the skin in elderly white men, which invades the dermis but remains localized and usually resolves spontaneously if untreated; microscopically, the nodule is co...
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http://www.medilexicon.com/medicaldictionary.php?t=46810
A keratoacanthoma is a rapidly evolving tumor of the skin with a "volcano-like" appearance, rising sharply from the surrounding skin as a smooth edge tumor. Centrally, within the cone of the "volcano", is rough, keratotic tissue. Keratoacanthomas usually spontaneously resolve within eight weeks, although they may continue to enlarge for months. Whe...
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http://www.skincareguide.ca/glossary/k/keratoacanthoma.html
[
n] - skin tumor that grows rapidly (especially in older people) and resembles a carcinoma but does not spread
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http://www.webdictionary.co.uk/definition.php?query=keratoacanthoma
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