Cancer Flashcards
What is cancer?
Cancer is an uncontrolled proliferation of cells that can arise from any cell type in the body. This occurs when normal cell division controls are not working.
What is the inital stage of cancer identified as?
Dysplasia - this is when there are abnormal cells within a tissue or organ but these cells are not yet cancerous
What type of condition is cancer?
A genetic condition
How does cancer occur in the body?
Cells can mutate, which is usually picked up on normal cellular mechanisms causing these cells to die. When cancer occurs, it is a failure of these mechanisms.
What does the term ‘malignant’ mean?
the word malignant is used to describe harmful masses or tumors that are cancerous and that grow and spread disease.
What does metastasise mean?
Metastasis is a pathogenic agent’s spread from an initial or primary site to a different or secondary site within the host’s body; the term is typically used when referring to metastasis by a cancerous tumor.
What are benign tumours?
Benign tumors are those that stay in their primary location without invading other sites of the body. They tend to grow slowly.
How are cancers classified (named)?
By the tissue that they arrise from
What type of tissue does ‘Carcinoma’ arise from?
Epithelial tissue (tissue of surfaces and linings in the body)
What type of tissue does ‘Adenocarcinoma’ arise from?
Glandular or ductal epithelium
(glandular tissue is commonly found in the breast, lung, stomach, colon, pancreas, prostate, uterus, and cervix and ductal epithelium is found in the breast)
What type of tissue does ‘lymphoma’ arise from?
Lymphatic tissue
(lymphatic tissue are cells and organs that make up the lymphatic system, such as white blood cells (leukocytes), bone marrow, and the thymus, spleen, and lymph nodes.)
What type of tissue does ‘leukaemia’ arise from?
Blood tissue
What type of tissue does ‘sarcoma’ arise from?
Connective tissue
Tissue that supports, protects, and gives structure to other tissues and organs in the body
What type of tissue does ‘myeloma’ arise from?
Plasma tissue
What are the 6 common signs and symptoms of cancer?
Unexplained weight loss Oedema or a lump Unusual bleeding (vagina/bowel ect) Persistent cough or fever Changes to a wart or mole Pain