Flashcards in Tumour Pathology 1 Deck (25):
What is a tumour?
-an abnormal growing mass of cells
Describe the growth of a tumour.
-Its growth is uncoordinated with that of surrounding normal tissues
--Its growth continues after the removal of any stimulus which may have cause the tumour
-It is an irreversible change
What are the 2 types of tumour?
What is cancer?
A fundamental property of cancer is its ability to invade into adjacent tissue and to metastasise and grow at other sites of the body.
What factors contribute to causation of cancer?
What are the 5 most common types of cancer in males?
What are the 5 most common types of cancer in females?
What are the 5 most common types of cancer overall?
How does 5-year survival rates vary?
-Rates vary greatly
-Melanoma has a 90% survival rate
-Lung only has a 15% survival rate
How are tumours classified?
-based on tissue of origin
-benign vs malignant
What tissues can cancer originate in?
What are glandular (epithelium) tumours called?
What are squamous (epithelium) tumours called?
-benign= squamous papilloma
-malignant= squamous carcinoma
What are bone (connective tissue) tumours called?
What are fat (connective tissue) tumours called?
What are fibrous tissue(connective tissue) tumours called?
What are tumours of white blood cells called?
What are tumours of the lymphoid tissue called?
What are tumours of the central nervous system called?
what are tumours of the peripheral nervous system called?
What are tumours of germ cells called?
How do teratomas differ in males and females.
Ovarian teratomas are usually benign whereas testicular teratomas are usually malignant.
What is a teratoma composed of?
What are the features of a benign tumour? (7)
-non-invasive growth pattern
-no evidence of invasion
-cells are similar to normal
-benign tumours are well differentiated
-function similar to normal tissue
-rarely cause death