[Morphometric analysis of the free stromal cells of nevi and malignant melanomas].

A morphologic study of 114 cases of pigmented skin tumors was carried out. The cases were divided into 5 groups on the basis of the degree of nevus proliferation and depth of melanoma invasion. The percentage and correlation between different types of free stromal cells were obtained for different skin zones in 6 cases of each group. Correlation analysis established the set character of cell cooperation at different stages of tumor growth. Diagrams illustrating correlations between free stromal cells and pigmented formations patterns are discussed. The results of the study may be helpful in running diagnostic tests of nevi for malignancy as well as identifying the depth of melanoma invasion whenever visual morphologic examination is insufficient.