
The ABCD rule (Asymmetry, Border irregular, Colours mixed, Diameter over 6mm) is a useful rule of thumb for evaluating suspicious skin lesions. It is…
Very irregular but harmless pigmented skin lesion
I am Antony Willman, a GP Trainer, Educator, and Research Fellow working for the MOD on Salisbury Plain.

The ABCD rule (Asymmetry, Border irregular, Colours mixed, Diameter over 6mm) is a useful rule of thumb for evaluating suspicious skin lesions. It is…
Very irregular but harmless pigmented skin lesion