Content
Keratoacanthoma is a type of benign, fast-growing skin tumor that usually occurs in areas exposed to the sun, such as the forehead, nose, upper lip, arms and hands.
This type of lesion generally has a rounded shape, filled with keratin, and with characteristics very similar to squamous cell carcinoma, so it is important to make a correct diagnosis.
Usually this type of injury does not cause symptoms and the treatment, when done, consists of performing a surgery, in which the keratoacanthoma is removed.
What are the signs and symptoms
Keratoacanthoma is characterized by a raised, rounded lesion with an appearance similar to the shape of a volcano, filled with keratin, which grows over time and may acquire a brown color. Although it looks like this, keratoacanthoma usually does not cause symptoms.
Possible causes
It is still unclear what causes the origin of keratoacanthoma, but it is thought that it may be related to genetic factors, sun exposure, exposure to chemicals, infection by the human papilloma virus or due to the occurrence of injuries in the region.
In addition, the risk of developing this type of skin lesion is higher in people who have a family history of keratoacanthoma, smokers, people who are very exposed to the sun or who use solariums, men, people with fair skin, people with immune system disorders and over 60 years old.
What is the diagnosis
The diagnosis must be made by a dermatologist, through a physical examination. In some cases, he may also recommend a biopsy, in which the keratoacanthoma is removed, for analysis, and to confirm the diagnosis, since the appearance of keratoacanatoma is very similar to squamous cell carcinoma. Find out what squamous cell carcinoma is and what the treatment consists of.
How the treatment is done
The treatment is usually done through a surgical excision of the keratoacanthoma which, after being removed, is sent for analysis. This type of surgery is performed under local anesthesia, and is quickly recovered, leaving a small scar in the region.
It is important for the person to know that, after the lesion is removed, new keratoacanthomas may appear, which is why it is important to go to the dermatologist frequently.
How to prevent
To avoid the appearance of keratoacanthoma, especially in people who have cases in the family or who have already suffered injuries, it is very important to avoid sun exposure, especially in hours of greater heat. In addition, whenever the person leaves the house, they should apply sun protection, preferably with a sun protection factor of 50+.
People at higher risk should also avoid using cigarettes and frequently examine the skin in order to detect lesions early.
Created by: Tua Saúde Editorial Team
Bibliography>
- NEFFA, Lívia et. al .. Keratoacanthoma: morphological, clinical and surgical aspects. Rev. Bras. Cir. Plást. . Vol.33. 3.ed; 382-388, 2018