تعريف
A dermatofibroma is extremely common. It is a small, firm bump on the skin. The bump is an overgrowth of the tissue lying between the outer and inner layers of skin. The bump is generally pinkish-brown in color and is often found on the legs. The dermatofibroma usually occurs alone and has no symptoms at all. Sometimes more than one appears. Generally, they are harmless and have no connection to سرطان الجلد.
أسباب
The cause is unknown. They sometimes seem to appear after a minor injury to the skin. This can include an insect bite or a prick of a thorn.
عوامل الخطر
The following factors increase your chance of developing dermatofibromas:
- الجنس: women are more likely to develop this condition than men.
- Age: middle-aged adults (dermatofibromas are rarely found in children)
الأعراض
These bumps rarely تسبب الأعراض. However, it is always important to see a doctor about any new skin growth.
Dermatofibromas are:
- Usually reddish-brown in color
- Darker for individuals with darker skin
- Color may change over time
- Found most often on the legs, but may also appear on the arms or trunk of the body
- Small in size (3-10 millimeters)
- Very firm to touch
- Occasionally itchy or sensitive when touched
- Raised from the skin and may bleed if damaged (For example, if you shave over a dermatofibroma, it can bleed)
التشخيص
الطبيب سوف يسأل عن الأعراض والتاريخ الطبي. الفحص السريري سيتم القيام به.
A dermatofibroma is diagnosed by sight and touch. Your doctor may also squeeze the skin over the bump. When squeezed together, a dimple will form.
If there is doubt, the bump can be surgically removed. The removed tissue is then examined more thoroughly under a microscope.
العلاج
Dermatofibromas do not go away by themselves. However, treatment is usually not necessary. It may be done if they are causing you some discomfort (itching or pain) or you feel they are unattractive. They do not pose any risk to your health.
تحدث مع طبيبك حول أفضل خطة لك. خيارات العلاج تشمل ما يلي:
Removal
The dermatofibroma may be cut off surgically. This can be done with local anesthesia.
Keep in mind that the dermatofibroma is usually deep. The removal will always leave a scar. The scar may not be any more attractive than the dermatofibroma itself.
Freezing
Liquid nitrogen can be used to freeze the bump and flatten it out. This method usually leaves a white mark behind. Also, the dermatofibroma may eventually grow back.
الوقاية
There is no way to prevent dermatofibromas.
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