Dermatofibroma
Dermatofibroma
Dermatofibroma (pronounced: der-ma-to-fi-bro-ma), also known as Cutaneous fibrous histiocytoma, is a common type of benign skin nodule that appears as a firm bump on the skin, often on the lower legs.
Etymology
The term 'Dermatofibroma' is derived from the Greek words 'derma' meaning skin, 'fibro' referring to fibrous tissue, and 'oma' indicating a tumor or growth.
Description
Dermatofibromas are characterized by overgrowth of the fibrous tissue in the dermis, the middle layer of the skin. They are usually small, less than half an inch in diameter, and can vary in color from pink to brown. They are most commonly found on the legs but can occur anywhere on the body.
Symptoms
Dermatofibromas are usually asymptomatic, meaning they do not cause any symptoms. However, they can sometimes be itchy or tender, especially when pinched.
Causes
The exact cause of dermatofibromas is unknown. They are thought to be reactive, possibly to minor skin injuries or insect bites.
Diagnosis
Dermatofibromas are usually diagnosed by their characteristic appearance. In some cases, a skin biopsy may be performed to confirm the diagnosis.
Treatment
Treatment is usually not necessary for dermatofibromas unless they are bothersome or for cosmetic reasons. If removal is desired, options include surgical excision, cryosurgery, or laser surgery.
Related Terms
External links
- Medical encyclopedia article on Dermatofibroma
- Wikipedia's article - Dermatofibroma
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