Risk stratification (RS)(Kenet) - Class 2 - 4

If no Class 1 features can be identified, look for possible signs of malignancy:


Fig. 5
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Fig. 14
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Fig. 15
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Class 2. Possible Melanoma






  • Irregular dark network with areas of pigment confluence
    at the edge ("birds’ nests") (Fig.5 ++)
  • Eccentricity of network with dark lines at the
    periphery
    (Figs14 and 15Þ )

Fig. 16
Click to view full size 		Next consider if the lesion is an atypical (dysplastic) naevus:

Class 3. Atypical Naevus


  • Pigment network with symmetric regions of
    hypopigmentation, often pink ("pink and patchy")
    (Fig.16)

Fig. 2
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Fig. 17
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Fig. 18
Click to view full size 		If this can be ruled our, the lesion belongs to:

Class 4. Benign Melanocytic Naevus


  • Medium to lightbrown network that fades at the
    periphery ("brown and fades") (Figs 2 and 17)
  • Regular brown globular pattern
    (Fig.18)