What should you know about rare melanoma?

Melanoma is a cancer of pigment-producing cells. The word rare may refer to an uncommon subtype, a less typical body location, or a pattern that needs additional review. A changing mark, dark patch, firm growth, or lesion that differs from nearby skin deserves assessment, but appearance alone cannot confirm melanoma.

A clinician may inspect the whole skin surface and nearby lymph nodes. A biopsy lets a pathologist identify the tumour type and features that guide staging. Some melanomas spread beyond the original site, which is why the team may discuss lymph-node assessment or scans when clinically appropriate.

Arrange a prompt dermatology or oncology assessment for a new or changing lesion. Do not pick, burn, or attempt to remove it at home. Photographing the area beside a ruler can help show change while you wait, and bring a list of medicines, previous skin cancers, and relevant family history.

Treatment depends on the biopsy result, depth, location, and whether disease has travelled. Options may include [Surgical Excision](/treatments/surgical-dermatology/excisional-surgery/), wider [Skin Cancer Surgery](/treatments/surgical-dermatology/skin-cancer-surgery/), lymph-node evaluation, or medicines such as [Immunotherapy](/treatments/systemic-therapy/immunotherapy/).

Seek urgent medical help for a rapidly enlarging lesion with persistent bleeding, severe pain, spreading redness, fever, or marked swelling. Emergency care is needed for new trouble breathing, facial swelling, confusion, weakness, or a severe headache. These symptoms need prompt assessment regardless of whether melanoma has been diagnosed.

Ask which melanoma subtype was found, what the biopsy shows, whether further staging is needed, and why a particular treatment is recommended. You can also ask how the scar or treated area will be monitored and what changes should trigger an earlier visit.