... irregularity. The perimeter of the lesion is uneven, undulating, ragged, notched, or blurred. C = Color. Multiple shades of tan, brown, black, red, white, and blue are admixed, produc-ing a mottled ... together, these optical means allow the visualization of certain epidermal, dermo-epidermal, and der-mal structures. As immersion liquid we recom-mend the use of 60° alcohol (ethanol) which ... recapitulate the most pertinent facets of each entity. This introductory chapter, therefore, can be considered a plea for recognition of the signifi-cance, and the unchanging importance, of...