Differential diagnosis of plantar wart from corn, callus and healed wart with the aid of dermoscopy

Conflicts of interest: none declared. Sir, Cutaneous warts are common in children, young adults and immunosuppressed patients. On careful observation, tiny black dots may be visible at the surface of the wart, and these represent thrombosed, dilated capillaries. Trimming the surface keratin makes the capillaries more prominent and this may be used as an aid in diagnosis. However, in some instances it is difficult to differentiate plantar wart from callus or corn with the naked eye. It is also a laborious task to determine whether or not the wart is completely healed after a few treatment sessions. Dermoscopy offers a huge potential to enhance the clinical interpretation of neoplasms and various skin diseases. In addition, Vazquez‐Lopez et al.1 attempted to classify the dermoscopic vascular structures of nontumoral dermatoses and described the vascular findings of flat warts as homogeneous red globules. In this preliminary study, we attempted to make a more accurate differential diagnosis and decisions concerning the complete resolution of warts with the application of dermoscopy.