What should you know about secondary melanoma?

Melanoma begins in pigment-producing cells and can move through nearby tissue, lymph channels or the bloodstream. A secondary tumour is made of melanoma cells, even when it appears in an organ away from the original skin lesion. The new location helps the care team plan treatment; it does not change the cancer's origin.

Assessment may include examination of the skin and lymph nodes, imaging, and a biopsy when a new area needs confirmation. Staging brings these findings together and can show whether spread is local, regional or further away. A melanoma specialist can explain what each result means for your situation.

Arrange prompt review with the clinician managing the melanoma and take previous pathology and scan reports to the appointment. Treatment is tailored to the sites involved, symptoms, prior treatment and overall health. Options may include surgery for a suitable isolated tumour, immunotherapy or other specialist treatment. Follow-up visits help the team check response, new symptoms and treatment effects.

Useful background includes [Melanoma](/conditions/melanoma/), [Sentinel Lymph Node Biopsy](/treatments/diagnostics-and-staging/sentinel-lymph-node-biopsy/) and [Immunotherapy](/treatments/systemic-therapy/immunotherapy/).

Contact your oncology team promptly for a new or worsening symptom, a rapidly enlarging lump, unexplained bleeding, severe pain, or marked weakness. Seek emergency help for trouble breathing, sudden confusion, a seizure, new one-sided weakness, or a severe headache with vomiting. These symptoms can have causes other than melanoma, but they need timely assessment.

Ask where the melanoma has been found, how the diagnosis was confirmed, what stage has been assigned, and whether more imaging or biopsy is needed. You can also ask which treatment goal applies, how side effects will be managed, and who to contact between visits.