Preferred Label : Head and Neck Merkel Cell Carcinoma;
NCIt synonyms : Head and Neck Merkel Cell Carcinoma of Unknown Primary; Head and Neck Lymph Nodes Merkel Cell Carcinoma;
NCIt definition : Merkel cell carcinoma that arises from the head and neck region. It usually arises
from sun-exposed skin. Rare cases arising from the oral cavity and salivary glands
have been reported.;