These 2 cases of seborrheic keratoses are dysplaying hairpin vessels:
Case 1: clinical view
Case 1: dermoscopic view: numerous hairpin blood vessels
Case 2: dermoscopic view: rare hairpin vessels
Hairpin vessels can be found in:
- seborrheic keratoses (fine, often surrounded by a hypopigmented halo)
- Melanoma (irregular)
- Spitz nevi
- keratoacanthomas
