Malignant melanoma--the treatment of the primary lesion.
D000970:Antineoplastic Agents / Q000627:therapeutic use; D001706:Biopsy; D006801:Humans; D008545:Melanoma / Q000473:pathology / Q000601:surgery*; D008727:Methotrexate / Q000627:therapeutic use; D009362:Neoplasm Metastasis; D012878:Skin Neoplasms / Q000473:pathology / Q000601:surgery*
D000970:Antineoplastic Agents; D008727:Methotrexate