[Morphometric evaluation of the growth of nevi].

We present a morphometric method aimed at evaluating the growth of pigmented naevi. The index of clinical atypia includes evaluation of area and corrugation of the lesions. The index of evolutivity compares the indices of clinical atypia at intervals of 100 days. The indices differ with the pathologies and also with each naevus in each group. Arranging the clinical atypia and evolutivity indices in decreasing values enabled us to distinguish between naevi under the influence of human growth hormone (hormonal influence), naevi intensively and recently sun-irradiated (UV influence) and unstimulated naevi of normal subjects.