Angiokeratomas result from dilatation of superficial blood vessels and epidermal thickening.

The classic lesion is a compressible, blue-black, discrete papule with a scant amount of scale.

Angiokeratoma occurring on the buttocks in a patient with angiokeratoma corpus diffusion.

Angiokeratoma of Fordyce occurs on the scrotum and vulva. It appears in midlife and is permanent.