Dermatofibroma
Last Updated: 2020-08-07
ICD11: 2F23.0
Last Updated: 2020-08-07
Author(s): Anzengruber F., Navarini A.
ICD11: 2F23.0
Histiocytoma, dermatofibroma lenticulare, fibroma en pastille, hard fibroma, Subepidermal nodular fibrosis, Sclerosing angioma
Dermatofibroma is a benign dermal and superficial subcutaneous proliferation. It is made up of oval cells which resemble histiocytes, and spindle‐shaped cells resembling fibroblasts and myofibroblasts.
More common in women in young adulthood.
This is followed by an inflammatory reaction of the connective tissue.
Mostly appears on the lower extremity as a red/brown, sharply defined, lenticular nodule is visible.
If the skin lesion is fixed between thumb and index finger, the nodule sinks (Fitzpatrick sign).
In the case of unusually large dermatofibromas (> 5 cm diameter) one speaks of giant dermatofibromas.
Taking medication.
Usually no treatment is necessary. However, cellular, atypical and aneurysmal variants should be completely removed conservatively.