ABSTRACT
The dermatoscopic hallmark of nodular-cystic Basal cell carcinoma (BCC) is the large, focused, bright red, and branching arborizing vessels, usually combined with a translucent pinkish background and ulceration. Dermatoscopy may reveal white-red structureless areas in infiltrative BCC and white structureless areas and/or white shiny blotches/strands in sclerodermiform BCC, histopathologically corresponding to the underlying fibrosis. Superficial BCC dermatoscopically displays a shiny white to red, translucent, or opaque structureless background and, occasionally, short fine telangiectasias with relatively few ramifications. The dermatoscopic findings of pigmented BCCs vary again according to the histopathologic subtype. Clinicians may also use dermatoscopy to evaluate the response of basal cell carcinoma to treatment and monitoring for possible recurrence. Reappearance of one or more of the latter criteria during follow-up suggests tumor recurrence. Squamous cell carcinoma is a malignant tumor that arises from the keratinizing cells of the epidermis or its appendages and is the second most common skin cancer after BCC.
