Signs and Evidence

Making clinical sense of scientific data


Beware of the limitations of this tool


Calculated pretest probability: 0.03 %
Relevant inclusion criteria: Any mole, lifetime chance, men 

Clinical signs

2Diameter > 6 mm
4Irregular border
5Two or more colors

Sources used:

1.Mark Ebell et al. Clinical Diagnosis of Melanoma. Am Fam Physician. 2008 Nov 15;78(10):1205-1208
2.Thomas L et al. Semiological value of ABCDE criteria in the diagnosis of cutaneous pigmented tumors. Dermatology. 1998;197(1):11-7
3.Hensin Tsao et al. The Transformation Rate of Moles (Melanocytic Nevi) Into Cutaneous MelanomaA Population-Based Estimate. Arch Dermatol. 2003;139(3):282-288