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Dermatofibroma — Clinical Guidelines

Overview

Dermatofibromas are benign dermal skin tumors commonly found on the extremities and trunk. Facial dermatofibromas are rare, with limited clinical data available 1.

Diagnosis

Clinical Presentation: Often presents as a firm, dermal nodule 1.

Dermatoscopy: Central white scarlike patch is a key dermoscopic feature, present in 92% of cases 4.

Histopathology: Cellular type and subcutaneous involvement noted in some cases 1.

Location: Facial involvement is uncommon, with forehead being a common site 1.

Unusual Locations: Palmar involvement is rare 2.

Management

Surgical Excision: Often curative for symptomatic or cosmetically concerning lesions 1.

Shave Excision: Alternative for superficial lesions 1.

No Specific Medical Therapy: No evidence for systemic or topical treatments 1 2 3.

Special Populations

Facial Lesions: Management considerations may differ due to aesthetic concerns 1.

Rarity in Specific Areas: Limited data on pediatric and elderly populations; palmar occurrence noted in adults with other dermatological conditions 2.

Key Recommendations

Utilize dermatoscopy with a central white scarlike patch as a key diagnostic criterion for dermatofibroma (Evidence: Moderate 4).

Consider surgical excision for definitive treatment of facial dermatofibromas due to their rarity and potential cosmetic impact (Evidence: Moderate 1).

Exercise caution with shave excision, particularly in facial regions, to minimize scarring (Evidence: Expert opinion 1).

References

1 Alsawas M, Dundar B, Prokop L, Murad MH, Swick B. Clinicopathologic Features of Facial Dermatofibromas, a Cohort Study, and a Systematic Review of Literature. The American Journal of dermatopathology 2022. link 2 Yamamoto T. Palmar dermatofibroma in a patient with multiple porokeratosis. Anais brasileiros de dermatologia 2022. link 3 Hamel J, Burgdorf WH, Bräuninger W. The man behind the eponym: Hans Biberstein and follicular hyperplasia overlying dermatofibroma. The American Journal of dermatopathology 2009. link 4 Ferrari A, Soyer HP, Peris K, Argenziano G, Mazzocchetti G, Piccolo D et al.. Central white scarlike patch: a dermatoscopic clue for the diagnosis of dermatofibroma. Journal of the American Academy of Dermatology 2000. link

Dermatofibroma