What Is Cancer? - NCI - National Cancer Institute
2021年10月11日 · Explanations about what cancer is, how cancer cells differ from normal cells, and genetic changes that cause cancer to grow and spread.
Definition of carcinoma - NCI Dictionary of Cancer Terms
NCI's Dictionary of Cancer Terms provides easy-to-understand definitions for words and phrases related to cancer and medicine.
Definition of carcinoma in situ - NCI Dictionary of Cancer Terms
Carcinoma in situ (CIS) is a group of abnormal cells that are found only in the place where they first formed in the body (see left panel). These abnormal cells may become cancer and spread to nearby normal tissue (see right panel).
Definition of neoplasm - NCI Dictionary of Cancer Terms
An abnormal mass of tissue that forms when cells grow and divide more than they should or do not die when they should. Neoplasms may be benign (not cancer) or malignant (cancer).
Definition of malignancy - NCI Dictionary of Cancer Terms
Carcinoma is a malignancy that begins in the skin or in tissues that line or cover internal organs. Sarcoma is a malignancy that begins in bone, cartilage, fat, muscle, blood vessels, or other connective or supportive tissue.
Metastatic Cancer: When Cancer Spreads - NCI - National Cancer …
2020年11月10日 · Metastatic cancer is cancer that spreads from its site of origin to another part of the body. Learn how cancer spreads, possible symptoms, common sites where cancer spreads, and how to find out about treatment options.
Definición de carcinoma - Diccionario de cáncer del NCI - NCI
El Diccionario de Cáncer del NCI define términos y frases de cáncer y medicina que son fáciles de entender.
Definition of keratinocyte carcinoma - NCI Dictionary of Cancer …
SCC and BCC are the most common types of skin cancer. Keratinocyte carcinoma can occur anywhere on the body, but it is most common in areas of the skin often exposed to sunlight, such as the face, ears, lower lip, neck, arms, and top of the …
NCI Dictionary of Cancer Terms - NCI - National Cancer Institute
NCI's Dictionary of Cancer Terms provides easy-to-understand definitions for words and phrases related to cancer and medicine.
Definition of squamous cell carcinoma - NCI Dictionary of Cancer …
Cancer that begins in squamous cells. Squamous cells are thin, flat cells that look like fish scales, and are found in the tissue that forms the surface of the skin, the lining of the hollow organs of the body, and the lining of the respiratory and digestive tracts.