Firm aspect on palpation and dermoscopic feature were in favor of a dermatofibroma.
Brown globule-like structures and ring-like structures (red circle) were observed.
Globulelike structures are formed because the rete ridges are often flat, confluent, and hyperpigmented .
Ringlike structures are a kind of globule with a darker peripheral rim.
The most frequent dermoscopic patterns observed in dermatofibromas are the central white
scar- like patch and the peripheral delicate pigment network.
Globule-like structures, ring-like structures, fissures and ridges are less usual structures in this kind of tumor.
Recent litterature about dermoscopy of dermatofibromas:
Pedro Zaballos, Susana Puig, Alex Llambrich, Josep Malvehy. Dermoscopy of Dermatofibromas. A Prospective Morphological Study of 412 Cases. Arch Dermatol. 2008;144(1):75-83
Other cases of dermatofibromas
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