Dermoscopic features of clinically inflammatory dermatoses and their correlation with histopathologic reaction patterns.

Dermoscopy can be used in diagnosis of some chronic inflammatory dermatoses. In this study, the single most recent, fully developed lesion in 74 patients with clinically inflammatory dermatoses was examined dermoscopically and correlated histopathologically with psoriasiform, lichenoid, or spongiotic reaction patterns. Vascular component (morphology and arrangement) was the most prominent feature in the studied patterns mostly in the shape of dots (45 specimens, 60.

Dermoscopic features of facial pigmented skin lesions.

Four types of facial pigmented skin lesions (FPSLs) constitute diagnostic challenge to dermatologists; early seborrheic keratosis (SK), pigmented actinic keratosis (AK), lentigo maligna (LM), and solar lentigo (SL). A retrospective analysis of dermoscopic images of histopathologically diagnosed clinically-challenging 64 flat FPSLs was conducted to establish the dermoscopic findings corresponding to each of SK, pigmented AK, LM, and SL. Four main dermoscopic features were evaluated: sharp demarcation, pigment pattern, follicular/epidermal pattern, and vascular pattern.