Proliferative activity of pigmented nevus cells and malignant melanoma of human skin]

The findings in the study of special features of proliferative activity in 58 pigmented neoplasms of skin have revealed a pronounced heterogeneity of tumor cell populations, malignant melanomas based on the values of the mitotic index (MI) and label index (LI). It is shown that while evaluating tumor anaplasia, these parameters provide more information as compared to the morphological characteristics.