Dermatofibroma - Causes, Symptoms & Treatment

Dermatofibromas are harmless benign skin growths, found especially on the legs, that range in size from about 0.5 to 1 cm. Dermatofibroma (DF) is a common cutaneous nodule of unknown etiology that occurs more often in women. The lesion frequently develops on the extremities (mostly the lower legs) and is usually asymptomatic, although pruritus and tenderness are not uncommon. The latter feature is seen in a sufficient number of patients to make DF the most prevalent of all painful skin tumors. Number of well-described, histologic subtypes have been reported. Removal of the tumor is not necessary unless diagnostic uncertainty exists or particularly troubling symptoms are present. They are hard papules (rounded bumps) that may appear in a variety of colors, usually brownish to tan. Typical dermatofibromas cause little or no discomfort, although itching and tenderness can occur.

Dermatofibroma is regarded as a benign lesion; however, discomfort from pain or itching may be significant. Dermatofibroma can occur in patients of any age, but it usually develops in young adulthood. Approximately 20% of the lesions occur before age 17 years. DF is probably better categorized as a neoplastic process rather than a reactive tissue change. Although any cutaneous site can be seen, palm and sole involvement is rare Such reported lesions were highly cellular, of large size, and locally recurrent. Indolent pulmonary metastases also were observed. The extremities are the most common sites of involvement, particularly the lower legs. The few case reports of metastatic DF are disputable from the standpoint of histologic diagnosis.

Causes of Dermatofibroma

The cause is unknown but in some cases it arises at the site of a minor injury, especially an insect bite or thorn prick. It is a form of urticaria in which skin welts develop along the lines where one has been stroked or scratched. They are usually single but sometimes may be multiple. Common causes of Dermatofibroma

• Insect bites.
• Minor injury or thorn pricks.

Symptoms of Dermatofibroma

There are generally no symptoms for dermatofibroma. It has cosmetic significance only and although it tends to persist long term, it seldom causes any symptoms. Usually only reassurance is needed. Sometimes its dark colour can raise anxiety about melanoma; if there is any doubt about its nature, the lesion can be excised for histology. Common Symptoms of Dermatofibroma

• Small, pea-sized growth.
• Itchy.
• Nodule.
• Dimpling.
• Painless.

Treatment of Dermatofibroma

Common Treatment of Dermatofibroma

• Shaving or is irritated by clothing, it can be flattened by freezing with liquid nitrogen.
• Intralesional steroid injections have been attempted with variable results.
• Cellulite cream thoroughly to the affected area, helps for fast recovery.
• Piece may be removed for tissue analysis.
• Cryosurgery may also be used to remove a dermatofibroma.
• Liquid nitrogen freezing destroys only the upper part of the growth.
• Apply Milk of Magnesia one on for ten minutes. Rinse off. A healthy low-fat, high fibre diet containing plenty of fresh fruits and vegetables are beneficial home remedies of dermatofibroma.

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