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Dermatofibroma

Firm, brown, nodular benign fibrohistiocytic lesion of the skin.

Written by: Saygı Hospital Health Guide Editorial Board
Last updated:

This content has been compiled by the Saygı Hospital Health Guide Editorial Board and is periodically reviewed by a specialist physician.

This content is for informational purposes only and does not constitute medical advice. You can book an appointment at our Dermatoloji department. Book Appointment →

What is Dermatofibroma?

Dermatofibroma is a benign skin tumor arising from proliferation of fibrohistiocytic cells in the dermis. It is usually located on the leg and presents as a painless, slowly growing nodule.

The typical finding is the formation of a central depression when squeezed ('dimple sign' or 'Fitzpatrick sign'). Insect bites or minor trauma may be triggering factors.

Treatment is usually not required; it may be excised only for cosmetic reasons or for diagnostic purposes.

Symptoms

Firm, brown-purple skin nodule
Usually 0.5-1 cm in size
Central depression when squeezed
Lower extremity location (most common)
Painlessness (sometimes mild tenderness)
Hyperpigmented edges
Multiple lesions (rarely)

Risk Factors

Female sex
Age 30-50
History of minor trauma or insect bite
Immunosuppression (in multiple lesions)
Autoimmune diseases (lupus)
Fair skin
Genetic predisposition (rare)

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • When a new skin nodule appears
  • Rapid growth or color change of the lesion
  • Addition of pain, itching, or bleeding
  • When multiple new lesions appear
  • For differentiation from similar-looking malignant lesions

Treatment Methods

01
Usually no treatment required, monitoring is sufficient
02
Excision in cosmetic or suspicious cases
03
Cryotherapy (superficial cases)
04
Laser therapy
05
Intralesional steroid in painful cases
06
Histopathologic confirmation

Which Department to Visit?

You can visit our Dermatoloji department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

Learn About Dermatoloji Department

Let us help you

You can make an appointment with our specialists or contact us for your concerns.

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Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.