Keloidal Dermatofibroma of the Face: A Rare Series of Three Cases

Abstract

Dermatofibroma, also known as benign fibrous histiocytoma, is a cutaneous lesion that commonly affects young or middle-aged adults, with a slight preponderance in females. It usually presents as a single or multiple skin-coloured to reddish-brown nodule, primarily affecting the limbs. In the present case series, the authors reported three cases (two males and one female) of the keloidal variant of dermatofibroma, a benign fibrohistiocytic tumour. These cases involved patients aged between 32 and 55 years. All patients presented with nodular lesions on their faces, clinically diagnosed as dermatofibroma. Upon excision, the tumours exhibited circumscribed features with keloid-like areas, multinucleated giant cells, and inflammatory infiltrate. Keloidal dermatofibroma should be considered as a differential diagnosis when encountering tumours with keloid-like characteristics, especially in cases where incomplete excision may lead to recurrence. The present case series highlights the rarity of all three cases occurring on the face, as the prevalence of keloidal dermatofibroma is only 1% among other variants.