Dermatofibroma
Dermatofibroma is a common benign skin growth, often appearing as a firm bump on the legs or arms. They are harmless but can be removed for cosmetic reasons or if symptomatic.
Table of Contents
Quick Facts
- ICD-10: D23.9
- Cancer risk: No
Features
- Firm, raised, small bump (usually 0.5–1 cm)
- Pink, red, brown, or purple
- Most common on legs and arms
- Characteristic 'dimple sign' — dimples when pinched from the sides
- Usually painless; occasionally itchy or tender
Diagnosis
Usually clinical. Biopsy in unclear cases or if features are atypical to rule out skin cancers.
Treatment
- Usually no treatment needed
- Surgical excision for cosmetic reasons or if symptomatic
- Cryotherapy for some cases
When to See a Doctor
See a doctor for any new, changing, growing, bleeding, or atypical skin lesion to confirm it is a benign dermatofibroma and not a skin cancer.
Medical Disclaimer: This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with questions about a medical condition. If you are experiencing a medical emergency, call your local emergency number immediately.
References
- American Academy of Dermatology. Dermatofibroma Information.