ABSTRACT
Clinical examination represents the first step in the diagnostic process of pink lesions. This is because inflammatory, infectious, or autoimmune diseases may reveal overlapping features with skin tumors and vice versa. Side by side dermoscopic appearance of two non-pigmented scaly plaques showing dotted/coiled vessels and white scales. The main differential diagnosis includes Bowen’s disease versus psoriasis. Dermoscopy alone is insufficient to differentiate between these two entities. As a general rule, multiple lesions favor an inflammatory disease, whereas a solitary lesion is more likely to be a tumor. There are, however, several exceptions to this rule, such as actinic keratoses or multiple superficial basal cell carcinomas. Skin tumors may reveal overlapping dermoscopic patterns with inflammatory, infectious, or autoimmune skin diseases. Assessment of the overall clinical context including history, symptoms, and clinical features is an integrative part of dermoscopic diagnosis.
