How to use this website in day to day practice or in looking at dermatoscopic images if learning.

 You look at a lesion and decide on the pattern. Lines take precedence over pseudopods, circles, clods and dots with structureless last. Actually a pattern of vessels comes last but you go with whatever you have! 

Click on the relevant pattern and it will take you to the likely diagnoses. Look then for clues as to  which one matches best. 

• Thick lines reticular or branched
• Lines radial peripheral or segmental pseudopods
• Lines parallel Ridges
• Various shades of pink
• White lines
• Lines Reticular
• Lines Curved
• Lines Branched
• Lines Radial Peripheral
• Lines Parallel
• Lines White
• Pseudopods
• Grey or Black Circles
• Brown Circles
• Circles Red
• Circles White
• Clods Red
• Clods Purple
• Clods Yellow
• Clods White
• Clods Orange
• Clods Brown
• Clods Black
• Clods Blue
• Dots Brown or Black
• Dots Grey
• Dots Blue Grey
• Dots Red
• Dots White
• Polygons
• Structureless Black
• Structureless Blue Black
• Structureless Blue Grey
• Structureless Brown peripheral
• Structureless Red
• Structureless Blue White
• Structureless White Yellow or Orange
• Structureless White
• Structureless Pink
• Vessels as Dots
• Vessels as Clods
• Vessels lInes Straight
• Vessels Lines Looped
• Vessels Lines Curved
• Vessels Lines Branched
• Vessels Lines Serpentine
• Vessels Lines Coiled
• Vessels Lines Helical
• Vessels Polymorphous plus Dots
• Vessels Polymorphous no Dots