Actinic keratosis cancer rash. When these nodes are numerous they will appear like the rush. This cancer rushes usually consists of dark or scaly nodes. They will often emerge in areas exposed to the sun for quite some times especially on the face, hands or on the neck. As stated above they are usually as a result if long expose on the skin to ultraviolet sunlight. If these nodes are became worst just give us a call to prevent possible skin cancer.