analysis of the topography peculiarities and distribution of oxidized melanine and its precursors ( dopa-oxide activity and catecholamine ) in pigment nevuses and malignant melanomas of skin shows that the studied peculiarities are a complex of intersupplementary markers of melanine formation , correlate with the quality and the degree of proliferative process expression in tumours of this genesis and may be used for their malignancy rating .
C0013023
dopa
C0007412
catecholamine