Merkel cell carcinoma

ARTICLE SECTIONS

Introduction Signs and symptoms Causes Risk factors When to seek medical advice

Screening and diagnosis Complications Treatment Prevention Self-care

Introduction

Merkel cell carcinoma is a rare, fast-growing cancer that usually appears as a flesh-colored or bluish-red nodule on your skin, often on your face, head or neck. Merkel cell carcinoma tends to spread quickly (metastasize) to other parts of your body. Like other types of skin cancers, the incidence of Merkel cell carcinoma is increasing worldwide.

Merkel cell carcinoma, also called neuroendocrine carcinoma of the skin, most often develops in older people. Long-term sun exposure or having a weak immune system may increase your risk of developing Merkel cell carcinoma.

The type of treatment you'll undergo depends on whether the cancer has spread beyond your skin by the time it's diagnosed.

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Signs and symptoms