Table 3 Dermoscopic features for actinic keratoses and cutaneous squamous cell carcinomas29,30,31,32.
Features | Description |
|---|---|
Actinic keratoses features | |
Strawberry pattern | Erythematous pseudonetwork with prominent follicles surrounded by white halos; characteristic of facial AKs. |
Fine white-yellowish scales | Thin, superficial desquamation often seen on the lesion surface. |
Gray dots / irregular pigmentation | Small gray perifollicular granules or asymmetrical pigment structures. |
White-yellowish structureless areas | Homogeneous keratin clods with no internal pattern. |
Cutaneous squamous cell carcinoma features | |
Hairpin vessels with white halo | Curved linear vessels shaped like hairpins, often surrounded by a thin white keratin halo. |
Glomerular vessels | Dotter red vessels arranged in clusters. |
Thick scaling / keratin masses | Coarse, adherent scales or yellowish central keratin plugs. |
Ulceration / hemorrhagic crusts | Surface erosions or blood crusts suggestive of lesion invasion and tissue breakdown. |
