Independently of the presence of several melanoma-specific dermoscopic criteria the absence of palpability in this clinically flat melanoma in situ is highly suggestive fora thin melanoma (100% probability)
This is an example of a palpable thin melanoma with no blue-whitish veil or atypical vascular pattern. In this melanoma a Breslow thickness less than 0.76 mm can be predicted with 81% probability.
In this palpable thin melanoma the combination of a blue-whitish veil and pigment network structures is suggestive for melanoma with a tumor thickness less than 0.76 mm (73% probability)
In this palpable melanoma with intermediate thickness (Breslow index: 0.9 mm) the combination of a blue-whitish veil and an atypical vascular pattern characterized by dotted vessels (arrow) permits a correct thickness prediction with 82% probability
In this nodular melanoma (Breslow index: 1.8 mm) the combination of a clinical diameter less than 15 mm, a blue-whitish veil and an atypical vascular pattern with dotted vessels (arrow) is highly suggestive for a melanoma thicker than 0.75 mm (97% likelihood)
In this nodular melanoma (Breslow index: 2.6 mm) the combination of a clinical diameter of more than 15 mm and a blue-whitish veil is indicative of melanoma thicker than 1.5 mm (70% likelihood)