Using a printed plastic ruler for measurement when using polarized dermoscopy without the contact face plate

When contact-mode polarized light dermoscopy is used, the pressure exerted by the contact plate can blanch the vascular patterns (Fig 1, A). 1 Benvenuto-Andrade C. Dusza S.W. Agero A.L. et al. Differences between polarized light dermoscopy and immersion contact dermoscopy for the evaluation of skin lesions. Arch Dermatol. 2007; 143: 329-338 Crossref PubMed Scopus (181) Google Scholar To this end, one can use contact polarized light dermoscopy,...