âº the members of a person's family who are directly related to that person and who lived a long time before him or her: She's very proud of her ancient royal lineage. Thesaurus: synonyms and related words. Family: ancestors & descendants. ancestor. ancestry. be in the/sb's blood idiom. blood.
The major types of cancer are carcinoma, sarcoma, melanoma, lymphoma, and leukemia. Carcinomas -- the most commonly diagnosed cancers -- originate in the skin, lungs, breasts, pancreas, and other organs and glands.Lymphomas are cancers of lymphocytes. Leukemia is cancer of the blood.iagnosis and Treatment. Prevention. Benign, or noncancerous, tumors -- such as freckles and moles -- stop growing, do not spread to other parts of the body, and do not create new tumors. Malignant, or cancerous, tumors crowd out healthy cells, interfere with body functions, and draw nutrients from body tissues.
You may have heard that there are different types of skin cancer, and if so, you are correct. Of these cancers, you may also hear them divided into 2 categories: non-melanoma skin cancers - including basal cell carcinoma and squamous cell carcinoma - and melanoma skin cancers.