The first sign of Merkel cell carcinoma is usually a fast-growing, painless nodule (tumor) on your skin. The nodule may be skin-colored or may appear in shades of red, blue or purple. Most Merkel cell carcinomas appear on the face, head or neck, but they can develop anywhere on your body, even on areas not exposed to sunlight.
first sign merkel cell carcinoma fast-growing  painless nodule (tumor) skin  nodule may skin-colored may shades red  blue purple  merkel cell carcinomas face  head neck  can develop body  areas exposed sunlight
merkel cell carcinoma