Scarce evidence exists on the dermoscopic pattern of vasculitides. Henoch-Schonlein purpura has been shown to dermoscopically reveal irregularly shaped red patches with blurred borders. Reported findings of urticarial vasculitis are described above.
In granuloma faciale, the specific dermoscopic features are dilated follicular openings, perifollicular whitish halo, follicular keratotic plugs and linear branching vessels. Clinically, granuloma faciale has to be differentiated from sarcoidosis, discoid lupus erythematosus, lupus vulgaris, lymphoma and basal cell carcinoma. The mentioned dermoscopic patterns simplify clinical differential diagnosis. But the distinction from discoid lupus erythematosus, which exhibits similar findings, remains challenging.