Aneurysmal dermatofibroma: An uncommon variant of a common disease

Aneurysmal dermatofibroma is an uncommon variant of dermatofibroma that closely mimics tumors such as Kaposi sarcoma, angiosarcoma, and malignant melanoma.As compared to classic dermatofibroma, this variant is larger in size, soft in consistency, has accelerated growth, and is often painful.We hereby present a case of aneurysmal dermatofibroma in a middle-aged female.A 37-year-old female presented with an asymptomatic nodular swelling over the left periumbilical area for the past four years.She noticed an increase in size and intermittent pain for the last three months.ere was no history of prior trauma, bleeding, or ulceration from the lesion.Clinical examination revealed a solitary bluish-brown nodular swelling of size measuring approximately 2 x 2 cm on the left side of the abdomen [Figure 1a].It was soft, tender, non-blanchable, and had no local rise in temperature, thrill, or bruit.Dermoscopy showed a bluish-purplish, prominent, homogeneous area, shiny white structures, and fine white scaling [Figure 1b].