A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Natural killer (NK) cells: White blood cells that contain granules with enzymes lethal to antigens.
Needle biopsy: Type of lymph node biopsy in which a small tissue sample is removed with slender needle placed through the skin and into the suspicious lymph node. Also known as fine needle aspiration.
Negative: Describing a tissue sample in which no cancer cells are found.
Neoadjuvant therapy: Treatment given prior to or immediately after the primary treatment. The purpose is to shrink tumors before surgery or to increase tolerance to chemotherapy or immunotherapy drugs.
Neoplasm: Any new abnormal growth. A neoplasm may be malignant or benign.
Nevi: Plural of nevus, or mole.
Nevus: The medical term for a mole.
Nitrosoureas: A class of chemotherapeutic agents, including carmustine and lomustine, that have been studied in the treatment of metastatic melanoma.
Nodular melanoma: Type of melanoma that usually appears as a blue-black, dome-shaped nodule on the trunk or head and neck. Nodular melanoma represents 15-30% of all melanomas.