Dermatofibroma is a very common skin condition. It is also called Fibrous Histiocytoma. Dermatofibroma is red-to-brown colored, small papule or nodule which is composed of fibroblastic tissue and is usually found on the legs. Dermatofibroma consists of a proliferation of scar-like tissue within the deeper layers of the skin. They usually occur alone and have no symptoms whatsoever. Sometimes more than one appears. Generally, dermatofibromas are harmless and have no connection to skin cancer.
The cause of dermatofibromas is unknown the cause of the Dermatofibroma is insect bites It occurs both male and female. But from the research it is found that it is mostly occurs in female. The ratio of male to female affected by this is 1:4. It is rarely found in children.
A risk factor is something that increases your chances of getting a disease or condition. The following factors increase your chances of developing dermatofibromas:
- Sex: Women are more likely to develop this condition than men
- Age: Middle-aged adults
Typical dermatofibromas cause little or no discomfort, although itching and tenderness can occur. They can be pink, gray, red or brown in color and may change color over the years. They are firm and often feel like a stone under the skin. They are firm bumps that feel like small rubbery buttons lying just under the surface of the skin. They are seldom more than 1 cm. across. They lie within the skin and so move with it; and can be moved easily over things lying beneath them. A dimple may appear over them when they are pinched.
Treatment of dermatofibromas should be considered when they get in the way of shaving or become irritated by clothing. In these cases surgical shaving of the top, punching out the center and maybe freezing with liquid nitrogen can be done. These treatments only destroy the upper part of the growth, and after a few years it may again become noticeable. If this happens, the treatment could be repeated again if desired.
If there is doubt about the diagnosis, the bump can be surgically removed under local anesthesia (medicine just numbs the area of surgery to prevent pain) and examined more thoroughly under a microscope.
Dermatofibromas do not go away by themselves. However, treatment of dermatofibromas is usually not necessary unless they are causing you some discomfort (itching or pain) or you feel they are unattractive. Dermatofibromas do not pose any risk to your health.