[Determination of serum S-100 protein and 5-S-cysteinyl-DOPA levels in melanoma patients]. / S-100 protein és 5-S-ciszteinil-DOPA vizsgálata melanomás betegekben.

This was the first time that authors detected se-S-100 and 5-SCD values with patients with malignant melanoma in Hungary. They examined the change of serum S-100 and 5-SCD value parallel. Sera were obtained with 184 melanoma patients 326 times. Patients were ranked into groups on the basis of clinical symptoms: free of symptoms and suffering from it (primary tumour, regional lymph node metastasis, soliter or multiplex distant metastasis). On the basis of the initial results the following have been found: S-100 protein and 5-SCD serum levels had no prognostic value in patients with primary melanoma. Patients without symptoms showed values around the normal level. There was significant difference in both markers between patients with or without symptoms. Significant differences were found between clinical stage I and II, as well as in clinical stage II and III. In the case of S-100 protein there was significant difference between the values of patients with soliter and multiplex distant metastasis.