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Dermatofibroma — SCE Dermatology MCQ

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EasySkin CancerDermatofibromaSCE Dermatology

A 20-year-old woman has a dermatofibroma on her lower leg. She asks whether excision is necessary. What is the standard recommendation?

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Correct answer: EExcision is not required — observe unless symptomatic, growing rapidly, or clinically atypical

Dermatofibromas are benign fibrous tumours that do not require excision. Indications for excision include: diagnostic uncertainty (atypical features on dermoscopy or clinical examination), symptomatic lesions (pain, pruritus), cosmetic concerns, rapid growth, or change in appearance suggesting a different diagnosis. Recurrence after incomplete excision is possible. Multiple eruptive dermatofibromas may be associated with immunosuppression (HIV, SLE, organ transplantation) and should prompt investigation. Dermoscopy (central white scar-like patch with peripheral delicate pigment network) can confirm the diagnosis non-invasively. Reassurance and discharge is appropriate for typical dermatofibromas.

Reference: BAD 2016; DermNet NZ