Description: Vascular patterns: Vessels as dots (A), clods (B), and linear vessels (C to H). Different types of linear vessels: Straight (C); looped (D), curved (E); serpentine (F), helical (G), and coiled (H).

History:

This poster was created by Dr Cliff Rosendahl to graphically illustrate the Kittler algorithm for dermatoscopic diagnosis.

Additional information on the algorithm can be obtained from a descriptive blog at www.haraldsalgorithm.blogspot.com.