Definition:
Keratoacanthoma is a fairly common, epithelial tumor. Formerly, it was regarded as variant of Squamous Cell Carcinoma; a form of malignant cancer that occur in many different organs of the body including the skin, lips, esophagus, and mouth among other else. It is a disease common in the elderly.
Keratoacanthoma usually disappears by itself within a period of time; it is non-contagious.
Diagnosis:
Diagnosis is confirmed through performing a skin biopsy.
Treatment:
There are many approaches that serve as treatment for Keratoacanthoma. The following are some of recommended treatment options:
* Cryosurgery, which involves freezing with extremely cold liquid nitrogen.
* Excision through the use of the scalpel; a medical instrument resembling a knife.
* Mohs Micrographic surgery
* Electrodessication and curettage
* Radiation therapy
* Taking a pill called Isotretinoin is necessary to minimize the size and number of Keratoacanthoma present.
Symptoms and Signs:
On the onset, Keratoacanthoma appears as a smooth red nodule/papule; usually, dome-shaped, resembling the shape of a volcano. It will rapidly grow within weeks; usually measuring 1-2 cm. It will then grow a keratin-filled “crater”, surrounded by crust. When left untreated, tumor will continuously grow and may last for 6 weeks. Slow regression is observed from 2-12 months. Keratoacanthoma can either appear alone or in multiple. The tumor is painless but can be itchy at times.
Causes:
* Chronic ulcers
* Previous history of skin cancer
* Chronic exposure to ultraviolet rays and sunlight
* Long standing scars
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