A case of malignant melanoma: disease progression correlated with serum levels of 5-S-Cysteinyldopa (5-S-CD) and intercellular adhesion molecule-1 (ICAM-1).

A 36-year-old Japanese female, in whom malignant melanoma was detected from symptoms of brain metastasis, died 7 months later. The serum levels of 5-S-Cysteinyldopa (5-S-CD) and intercellular adhesion molecule-1 (ICAM-1) correlated with the disease progression. These values may be useful markers of disease progression for malignant melanoma, because the material is easily, frequently, and non-invasively obtained at regular intervals.