Spindle and epithelioid cell nevus (Spitz nevus). Observation on nine cases

Nine cases with spindle and epithelioid cell nevus occurred in children were analysed clinically and morphologically. The results indicate that Spitz nevus is composed of cells resembling those of a malignant melanoma. There are some morphological aspects such as: discontinuous junctional proliferation, the sparse mitotic activity, the process of maturation of the cells with increasing depth, considered as valuable markers for the benign character of this type of tumour.