Merkel Cell Carcinoma: What to Know

Merkel cell carcinoma (MCC) is a rare and aggressive type of skin cancer that develops from Merkel cells, which are cells found in the top layer of the skin. MCC is more common in older adults and people with fair skin, and it is often associated with sun exposure.

Symptoms of MCC:

- A firm, painless, red or purple nodule on the skin

- Most commonly found on sun-exposed areas, such as the face, arms, and legs

- May grow rapidly and spread to other parts of the body

Risk Factors for MCC:

- Age 50 or older

- Fair skin

- Sun exposure (ultraviolet radiation)

- Weakened immune system (from organ transplant, HIV, or certain medical conditions)

Diagnosis of MCC:

- A physical examination of the skin

- A biopsy of the suspicious skin growth

Treatment for MCC:

- Surgical removal of the tumor

- Radiation therapy

- Chemotherapy

- Immunotherapy

Prognosis for MCC:

The prognosis for MCC depends on the stage of the cancer at the time of diagnosis and the patient's overall health. Early-stage MCC is highly curable with surgical removal, while advanced-stage MCC can be more difficult to treat and may have a poorer prognosis. Regular skin exams and sun protection are important for early detection and prevention of MCC.