pathology lesson 7 cancer


A tumor. The abnormal, excessive and uncontrollable multiplication of cells with the formation of a mass or new growth of tissue


scientific study of tumors


tumor that does not invade its surrounding tissue or spread around the body


a glandular tumor is found in the breasts, thyroid glands, and the mucous glands of the intestinal tract


grows as a projecting mass on the skin or from an inner mucous membrane, an example being a common wart


a skin tumor that contains a dark pigment called melanin and example being the common mole


a growth or mass of the tissue that protrudes from the mucous membrane


A tumor of the bone. It may appear as swelling or have no symptoms at all. It usually develops at the end of a long bone


A tumor originating from the bone marrow, usually in the long bones or pelvis


A soft, fatty tumor that develops in the adipose or fatty tissue


A tumor composed of blood vessels, an example being a typical red birthmark or "port wine" stain


Composed of fibrous or connective tissue. They can grow in all organs


Also known as fibrous, is a benign smooth muscle tumor that very rarely becomes cancer (0.1%). They can occur in any organ, but the most common forms occur in the uterus, small bowel, and the esophagus


A rhabdomyoma is a benign tumor of striated muscle


Tumors originating from the nerves. They are composed of cells enveloping the axons. A very common benign neuromas is morton's neuroma


tumor that may invade its surrounding tissue or spread around the bodyMay grow more rapidly than benignMay spread so they are more likely to recur in other sitesMay spread to other parts of the body through the bloodstream or the lymphatic system, also may invade nearby tissues


Cancer cells often have abnormal chromosomes and DNA making their nuclei larger and darker


Benign- surgery some may be treated with radiationMalignant- chemotherapy, radiation therapy, or other to eliminate cancer cells

(stages) Carcinoma

forms in the skin or tissue cells that line the body's internal organs, such as the kidneys and liver

(stages) Sarcoma

grows in the body's connective tissue cells, which include fat, blood vessels, nerves, bones, muscles, deep skin tissues and cartilage

(stages) Carcinomas

are the most common type of cancer

(stages) In situ phase

a group of abnormal cells that remain in the place where they first formed. They have not spread. These abnormal cells may become cancerous and spread into normal tissue. Also called stage 0 of disease