Utility of dermatoscopy in the diagnosis of acanthosis nigricans

We have read with great interest the review article by Das et al, which was recently published in the Journal of Cosmetic Dermatology.1The authors provided a comprehensive and updated review of cur-rent knowledge on acanthosis nigricans (AN) with particular empha-sis on diagnostic testing strategies. They pointed out that AN can imitate many different clinical entities, including epidermal nevus, psoriasis, fungal infections, atopic dirty neck, confluent and retic-ulated papillomatosis, Hailey-Hailey disease, and terra firma-forme dermatosis. The authors also underlined the importance of proper history, physical examination, and histopathological evaluation in the differential diagnosis.1 Here, we would like to briefly discuss the role of dermatoscopy as an adjunctive diagnostic tool that will facil-itate the diagnosis of AN..