In recent years, more attention has been given to the vascular patternsThis glossary term has not yet been described. of pigmented and nonpigmented lesions. The increased availability of dermoscopes using polarized lightThis glossary term has not yet been described. allow for the inspection of a lesion without the need to contact the lesion. This prevents blood vessel compression, which in part helps in making the blood vessel morphologyThis glossary term has not yet been described. more conspicuous. A detailed description of the vascular structures can be found here Vascular structures.