This is a unicentric national prospective observational study aimed at evaluating the use of two devices (skin patch and breath analyzer) for the non or minimally invasive diagnosis of metastatic melanoma with a total duration of 24 months. The study will be based on the obtention of different patterns of volatile organic compounds using the aforementioned devices for melanoma patients with and without metastasis. The results will be compared with the standard procedures for the detection of metastatic melanoma (standard imaging techniques such as PET, MRI, etc.) and correlated with standard prognostic biomarkers (cfDNA mutations in BRAF, NRAS, etc.) obtained using liquid biopsy.
